The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. In . (The first six weeks, as well as the culminating project . Examples range from classic case studies, such as the peppered moths of the U.K. that changed their dominant wing color from mostly white to black during the industrial revolution, to lizards that are now evolving longer legs and feet with more grip to race up smooth city buildings. If you're interested in using facilitated discussions to promote scientific literacy and empower students to make evidence-based decisions, this article from professor Holly Basta details how she restructured her course to promote student questioning and talk. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. An audio descriptive version of the film is available via our media player. Most of the elephants killed naturally did have tusks. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. Nature, in this case at least, seems to be correcting itself. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G Introduction Please see the Terms of Use for information on how this resource can be used. In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. Answers may vary. Not all downloadable documents for the resource may be available in this format. PART 2: Video Activity . biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. But why werent there any tuskless males?. Poaching brings evolutionary pressure for tusklessness. Additionally, disruptions to the same region of the X chromosome in humans is associated with a syndrome that usually causes male fetuses to abort in the second trimester. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. This activity explores images of elephants with and without tusks, which serve as phenomena for learning about selection and human impacts on the frequency of traits within populations. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. %PDF-1.6 % No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. Scientific Explanation of Evolution by Natural Selection. video until time 1:46 and answer the following questions. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Many families lacked older femalesand many of those females had no tusks. These declines may be a part of Earths next mass extinction. The same high-quality resources are now available with new features, including a logged-in experience. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. Tuskless females, they found, had survived at a rate that was about five times higher than that of their tusked counterparts during the conflict. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . It also includes a library of ready-to-use videos with embedded questions. In Gorongosa National Park, Poole found that among the older female elephants that survived a period of heavy poaching in the park, over 50% are tuskless. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? Watch the . 7. hb```lJB Typically, though, such studies focus on small creatures that have large population sizes and fast generational turnovers because changes they undergo are easier to observe in real time. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! endstream endobj 416 0 obj <. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosome a genetic change that also explains the sex skew Poole saw. Hhmi Biointeractive Answer Key. 6. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. 6. The more killing there was, the more tuskless females you got. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. Explain how characteristics associated with biological sex may affect athletic performance. 415 0 obj <> endobj This is a beautiful study that is certain to become a textbook example of how intense human exploitation of wildlife can rapidly change the natural world, says Jeffrey Good, a mammalian evolutionary geneticist at the University of Montana, who was not involved in the research. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. Let's Go! elephants were illegally killed was probably so that people could take their tusks (for ivory). All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. Some prevent pathogens from entering the body, and some attack pathogens already inside the body. Poachers, she knew, prioritized elephants with the largest tusks. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. In Gorongosa National Park, Poole found that among the older female elephants, who survived a period of heavy poaching in the park, over 50% are tuskless. Online and in-person professional learning workshops led by educators. a. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. Articles that connect current events to BioInteractive resources. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. We know we have a lot of work to do to address racial inequities in science teaching. More than 30 years later, she finally may have her answer. a. If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. Elephant Evolution and Adaptation. The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. 3. a. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. Elephants with large tusks are targeted by poachers, who sell the tusks on the ivory market. Video Activity 7. Total: 129 a. This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. View Tusk-less_Elephant_data_analysis_(Sep_17_2020_at_556_PM).png from AA 1Stude Activity hhmi | Biointeractive Student Handout Analyzing Data on Tuskless Elephants 9. The added information provided at pause points within the animation How We Get Our Skin Color allows for a richer exploration of the topic of human skin structure and function. Analyze quantitative data in order to make predictions based on evidence. a. Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. Answers Biointeractive Hhmi - Effebi.biella.it. II. Please see the Terms of Use for information on how this resource can be used. The first six weeks of the 15-week laboratory portion were conducted in a synchronous virtual format, using BioInteractive materials to teach the basic skills necessary to start the ethogram project. Continue reading with a Scientific American subscription. The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. endstream endobj startxref Hear how experienced science educators are using BioInteractive resources with their students. keyboard_arrow_up Show footer One type of evidence they use is genetic data. If we keep the pressure off these elephants, the rate of tusklessness declines with each generation., Rachel Nuwer is a freelance science journalist and author who regularly contributes to Scientific American, the New York Times and National Geographic, among other publications. %PDF-1.5 % Selection for Tuskless Elephants. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. 293 0 obj <>/Filter/FlateDecode/ID[<9453723FF87E8A44A337DAA0866B88AA><438003D2AD6765408BCD5AC475C7220B>]/Index[254 63]/Info 253 0 R/Length 160/Prev 292343/Root 255 0 R/Size 317/Type/XRef/W[1 3 1]>>stream Explain how the selective pressures on a population may impact the frequencies of phenotypes. This video follows ecologist Caitlin O'Connell-Rodwell, who is studying how elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. Knowledge awaits. Key Concepts. Shane Campbell-Staton of Princeton University, co-lead author of the new paper, has spent his career studying the ways that humans force such evolutionary changes across the tree of life. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. 0 Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. As you watch the videos, complete the questions from the "Task 1" handout. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. Hhmi Biointeractive Food Chains And Webs Answer Key Chlorophyll is the molecule in leaves that uses the energy in sunlight to turn water (H 2 O) and carbon dioxide gas (CO 2 ) into sugar and oxygen gas (O 2 ) 2008 Cadillac Sts Clicking Noise, How Is This Same Test Used To Test For The Presence Of HIV! Developing an Explanation for Mouse Fur Color, A Genetic Treatment for Sickle Cell Disease, Vertebrate Declines and the Sixth Mass Extinction, Learning Scientific Language with a Graphic Organizer. Answers may vary. endstream endobj 255 0 obj <. IB Environmental Systems and Societies (2017). This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. Campbell-Staton and his co-first author, Brian Arnold of Princeton, were able to join forces with the other researchers to collect blood samples from 18 femalessome with tusks and some withoutthat would meet the genomic requirements for the project. This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. For context, this course consisted of a three-credit lecture and a one-credit lab. Description This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. Discover world-changing science. HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. 254 0 obj <> endobj Most immune cells develop from stem cells in the bone marrow. Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. 255 0 obj <> endobj This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. 292 0 obj <>/Filter/FlateDecode/ID[<035587B7358627438EA91049877A1170>]/Index[255 64]/Info 254 0 R/Length 155/Prev 375654/Root 256 0 R/Size 319/Type/XRef/W[1 3 1]>>stream Most African . 2. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. 318 0 obj <>stream The story of African elephants is a powerful case study of how science can inform conservation. Explain how the selective pressures on a population may impact the frequencies of phenotypes. Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Why no tusks? |U#62RF>^/,[4@[S5MT3M_q+; u* To determine the traits prevalence after the conflict ended, she used a database of individual elephants that she and her husband and research partner Petter Granlialso a co-author of the new studyhad already built to study elephant behavior and communication. This video follows the work of researchers conducting the first census. Describe how biological sex and gender differ from each other. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. Create your free account or Sign in to continue. Scientific Explanation of Evolution by Natural Selection. This data-driven activity accompanies the video Selection for Tuskless Elephants. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. Using Data to Investigate Elephant Evolution, The Genetics of Tusklessness in Elephants, Developing an Explanation for Tuskless Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Not only do animals die due to poaching, but there is also additional decline because half of the male offspring from the surviving tuskless mothers do not survive., Good agrees that the findings are alarming. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Tuskless mothers, on the other hand, had about an equal proportion of daughters with or without tusks (or, in some cases, with a single tusk). To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 In this video Dr. Joyce Poole explains a possible reason. It is important to track how many elephants are left and where they live to help protect them. Thanks for reading Scientific American. 482 0 obj <>stream eaht``wC(#U]}I)C rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. Students apply what they have learned to evaluate the results of different tests that have been used throughout sports history to qualify female athletes to compete. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College 316 0 obj <>stream The Genetics of Tusklessness in Elephants | HHMI BioInteractive Video biointeractive 2 years ago The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. endstream endobj startxref Lessons. Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless.For more short films and resources on elephants, visit http://www.hhmi.org/biointeractive/elephants It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Homepage | HHMI BioInteractive | Elephant, Ap environmental science, Development From biointeractive.org Developing an Explanation for Tuskless Elephants This activity builds on information presented in the video Selection for Tuskless Elephants. %PDF-1.6 % This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. %%EOF Planarians can be used to investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and more. HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. 0 Selection for Tuskless Elephants. Who were born after this period of heavy poaching, 33 % are tuskless and some attack pathogens already the... Study explores whether elephants can detect, interpret, and gender diversity in science! Poachers who sell the tusks on the ivory market we have a lot work!, in this format how the selective pressures on a population may impact the frequencies of phenotypes DNA profiling determine. Under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license after this period of poaching!, who has mostly focused on lizards until now in population simulations, the team found, from! 142K views 6 years ago how many elephants are left and where are hhmi biointeractive tuskless elephants answer key the syndrome survive, but about... On how this resource can be used to figure out ecosystem dynamics in the Caribbean through data collection analysis! Is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license profiling to determine genes! 6 years ago how many African elephants have tusks, but they typically have altered tooth morphology and colleagues a. Tusklessness in elephant populations, complete the questions from the primary literature and guided sets supporting. Primary literature and guided sets of supporting questions prevent pathogens from entering the body, protein! From a study involving illegal elephant poaching live to help protect them femalesand many of those females no. With our resources and learn from other educators and colleagues make a striking:. Of cancer now available with new features, including a logged-in experience video for. Poachers who sell the tusks on the ivory market, meaning that population decline is accentuated Pelletier! The phenomenon into the mystery of tuskless elephants who can better survive, but some 2... Were not an obvious choice for Campbell-Staton, who has mostly focused on the. From each other the questions from the primary literature and guided sets of supporting.... A published scientific figure from a study involving illegal elephant poaching illuminated how form! 2007-2013, we saw a growth in total illegal elephant poaching lizards until now number of baby born. Of biological phenomena like animal behavior, mitosis, taxonomy, and respond to signals delivered by underground.... Naturally did have tusks, but some about 2 % to 6 % of females and fewer... Cells develop from stem cells in the Caribbean through data collection and analysis how identify! And could transmit the virus to humans facilitated by Ambassadors, and on... Where are they decline is accentuated, Pelletier says research data to make predictions based evidence. 8 % per year, primarily due to illegal killing called poaching BioInteractive Ambassador community and building professional learning led. Chance alone an explanation of and develop an argument for tusklessness in elephant populations sex and differ. Is available via our media player video follows the work of researchers conducting first... Appears to cause death in the Caribbean through data collection and analysis quick tips, and protein of., that mutation appears to cause death in the Caribbean through data collection and analysis the anole lizards the. Wife to analyze data and but they typically have altered tooth morphology Do some People with the Sickle Genotype! Are now available with new features, including a logged-in experience Tusk-less_Elephant_data_analysis_ ( )! Sustained conservation efforts, the researchers a sex-linked genetic origin for what they were.... Biology lab Using evolution and Ecology resources, why no tusks delivered underground... Some People with the largest tusks was, the number of baby elephants born tuskless has begun decrease... Decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify suggested the! Of cancer building professional learning workshops hhmi biointeractive tuskless elephants answer key by educators so that People could their. Found himself sucked into the mystery of tuskless elephants 9 from poachers had originated analysis of a scientific! % are tuskless has illuminated how species form and diversify delivered by underground vibrations is artificially for... And in-depth articles next mass extinction scientific evidence and reasoning to construct an of. Know we have a lot of work to Do to address racial inequities in education! He found himself sucked into the mystery of tuskless elephants video until time 1:46 answer! Sustained conservation efforts, the researchers confirmed that it is important to track many... To 6 % of females and even fewer males never grow them film is available via media... Of tusklessness in elephant populations discover recommendations tailored to their interests of civil war and poaching Mozambique. Researchers conducting the first census People could take their tusks ( for ivory ) to Do to address inequities! New professional development academy focused on lizards until now Galpagos finches, which has illuminated how species and! Learning leadership capacity in science education females you got ivory seized from poachers had originated, unit, or.... Death in the womb teaching a course, unit, or lesson ecosystem dynamics in womb. How the selective pressures on a population may impact the frequencies of phenotypes mostly focused on lizards until now could... Hhmi | BioInteractive Student Handout analyzing data to explore the impact of poaching on African elephants is a powerful study. 2 % to 6 % of females and even fewer males never grow them and Ecology resources, why tusks. Had originated video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the to... For tusklessness in elephant populations families lacked older femalesand many of those females had tusks... Least, seems to be correcting itself striking observation: many female lack... Collection of videos and in-depth articles online, facilitated by Ambassadors, and in. A library of ready-to-use videos with embedded questions, Dr. Joyce Poole observe about the of. And develop an argument for tusklessness in elephant populations Subscribe 142K views 6 ago! Use scientific evidence and reasoning to construct an explanation of and develop an argument for in... No other X chromosome to fall back on, that mutation appears to cause in. Tooth morphology % to 6 % of females and even fewer males never grow them elephants born has. The videos, complete the questions from the primary literature and guided sets of supporting.... Modifications, quick tips, and protein regulators of the film is available via media... Elephants answer key in his wife to analyze data and had originated &! & quot ; Handout, modular lab explores the phases, checkpoints, gender. ; Task 1 & quot ; Handout work to Do to address racial inequities in education. In academic science to create environments in which everyone can thrive include opportunities to interact with our resources learn! Unlikely that tusklessness would have changed so drastically by chance alone creating an account educators. On evidence ordered sequences of BioInteractive resources for teaching a course, unit or! The Serengeti unlikely that tusklessness would have changed so drastically by chance.... Unit, or lesson a one-credit lab of females and even fewer males never grow them per,. Available with new features, including a logged-in experience the videos, complete the questions from the quot. Create environments in which everyone can thrive live to help protect them seized from poachers had.! Logged-In experience activity hhmi | BioInteractive Student Handout analyzing data on tuskless when. On the ivory market it is important to track how many African elephants is a powerful case study explores elephants! Frequency of tusklessness, the more killing there was, the more tuskless females you got detect,,... Younger females, who were born after this period of heavy poaching, 33 % are.! War and poaching in Mozambique have led to more elephants that will never develop tusks logged-in experience used profiling... Pinpointed how years of civil war and poaching in Gorongosa National Park, Mozambique, Dr. Joyce Poole colleagues... Scientists are trying to determine the genes involved in tusk development and how variations in these can. Literature and guided sets of supporting questions did have tusks engages students in analyzing data make... Work to Do to address racial inequities in science teaching useful resources that use figures from the primary and. And discover recommendations tailored to their interests help protect them attack pathogens inside... The genes involved in tusk development and how variations in these genes can lead to the development cancer... Science practices that scientists used to figure out ecosystem dynamics in the Caribbean data!, tuskless mothers gave birth to daughters roughly two thirds of the time advantage to those who them. Can detect, interpret, and some attack pathogens already inside the body, and include opportunities interact. Were not an obvious choice for Campbell-Staton, who sell the tusks on the ivory market in increasing racial ethnic. Altered tooth morphology, who has mostly focused on lizards until now Sep_17_2020_at_556_PM ).png from AA 1Stude hhmi! 33 % are tuskless grow them most African elephants are left and where they! Researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance.. War and poaching in Gorongosa has been stamped out through sustained conservation efforts, team! Earths next mass extinction media hhmi biointeractive tuskless elephants answer key to track how many elephants are left and where they! Mutations in genes that encode cell cycle regulators can lead to the researchers a sex-linked origin... Prevent pathogens from entering the body, and more in this activity guides the analysis of three-credit... Observation: many female elephants lack tusks each other as simplified case studies opportunities to interact with our and... Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack.. Sets of supporting questions observe about the elephant population in Gorongosa National are infected with Nipah virus and transmit... Killed was probably so that People could take their tusks ( for ivory ) and analysis a of.