hhmi biointeractive tuskless elephants answer keydysautonomia scholarships
This activity builds on information presented in the video Selection for Tuskless Elephants. Please see the Terms of Use for information on how this resource can be used. 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. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. It also includes a library of ready-to-use videos with embedded questions. 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. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. The accompanying worksheet guides students exploration. hb```lRB 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. Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. endstream endobj 255 0 obj <. Learn about the history of sex verification testing of athletes and the science behind the tests used. In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. Let's Go! This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. An audio descriptive version of the film is available via our media player. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. Posted on 11/01/2021 by 11/01/2021 by Answers may vary. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Determine whether scientific results confirm or contradict a hypothesis. Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. Articles that connect current events to BioInteractive resources. A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. Video Activity 7. 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 module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. It is important to track how many elephants are left and where they live to help protect them. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. 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. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts Poachers, she knew, prioritized elephants with the largest tusks. ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. Real science, real stories, and real data to engage students in exploring the living world. %%EOF Lessons. Tuskless females, they found, had survived at a rate that was about five times higher than that of their tusked counterparts during the conflict. Key Concepts. %PDF-1.5 % Description. These changes came with enormous cost to the overall genetic health of these declining populations., Ultimately, Campbell-Staton says, the study speaks to the ubiquity of the human footprint as an evolutionary force., There is some good news, however. Hear how experienced science educators are using BioInteractive resources with their students. hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u 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. |U#62RF>^/,[4@[S5MT3M_q+; u* 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. Scientific Explanation of Evolution by Natural Selection. video until time 1:46 and answer the following questions. Knowledge awaits. 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 video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. Most African . Explain how the selective pressures on a population may impact the frequencies of phenotypes. Thanks for reading Scientific American. In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. hbbd```b``"WHg -,^ 452 0 obj <>/Filter/FlateDecode/ID[<236583C912FAC64F88BAF3D554E36451>]/Index[415 68]/Info 414 0 R/Length 157/Prev 328511/Root 416 0 R/Size 483/Type/XRef/W[1 3 1]>>stream This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Allele and Phenotype Frequencies in Rock Pocket Mouse Populations, Color Variation Over Time in Rock Pocket Mouse Populations, Look Who's Coming for Dinner: Selection by Predation, The Making of the Fittest: Natural Selection and Adaptation, Developing an Explanation for Mouse Fur Color, Simulating Evolution of a Rock Pocket Mouse Population. The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. We know we have a lot of work to do to address racial inequities in science teaching. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. This data-driven activity accompanies the video Selection for Tuskless Elephants. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. 2 Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. 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 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. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. 254 0 obj <> endobj One type of evidence they use is genetic data. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. Describe how biological sex and gender differ from each other. a. 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. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G English; analyzing data on tuskless elephants biointeractive answer key. 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. Elephant Evolution and Adaptation. 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. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. Create your free account or Sign in to continue. Math.N-Q.A.1, Math.N-Q.A.3, Math.S-IC.3; MP2, MP3, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license, Why no tusks? 0 Elephants with large tusks are targeted by poachers, who sell the tusks on the ivory market. Coherent lesson sequences driven by students asking questions about phenomena. 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. biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. %%EOF This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. In this activity, students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. View details . 0 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. Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. biointeractive 231K subscribers Subscribe 1.3K Share 130K views 5 years ago Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the. Suggest some ways to reduce the number of elephants that are illegally killed each year. Thanks for reading Scientific American. Keep up with the latest from BioInteractive! Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. iU This tool can be used to add pause points, questions, and labels to any BioInteractive video. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. The human immune system is made up of many cells, organs, and tissues. Biology 101 Spring 2020 Selection for Tuskless Elephants modified from HHMI BioInteractive PART I: Introduction and Pre-Video Activity A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. But the proportion of tuskless elephants has increased in some populations. Introduction Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. 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. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. 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. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. The story of African elephants is a powerful case study of how science can inform conservation. 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. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. 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. Watch the . Researchers created the model in Figure 1 using data from cell fractionation studies. Propose a claim supported by scientific evidence to answer a research question. elephants were illegally killed was probably so that people could take their tusks (for ivory). 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. endstream endobj 416 0 obj <. 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. 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. Gathering the data to enable this key final step proved trickier than he expected, however. In 1989, when elephant ethologist Joyce Poole began carrying out surveys of three East African elephant populations to understand the impact that heavy poaching was having on them, she quickly noted several stark trends. 2. 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. Use evidence-based predictions to explain how a population changes over time due to human impacts. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. 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. PART 2: Video Activity . 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. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosomea genetic change that also explains the sex skew Poole saw. Analyzing Data on Tuskless Elephants. The video focused on Mozambiques Gorongosa National Park, which suffered especially heavy poaching during the Mozambican Civil War, which occurred from 1977 to 1992. All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. Selection for Tuskless Elephants. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Provide evidence-based reasoning that uses available data to support a scientific claim. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. Explain how characteristics associated with biological sex may affect athletic performance. The Genetics of Tusklessness in Elephants This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. AQ` n& This video presents an intriguing phenomenon: two patients who carry the same genetic variation, which is known to cause sickle cell disease, have very different outcomes. Selection for Tuskless Elephants. 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. !: H3d -:Cg Zf d1 The same high-quality resources are now available with new features, including a logged-in experience. In this video, biologist Shane Campbell-Staton walks through the steps of collecting DNA samples from elephants in Gorongosa National Park and how he plans to analyze their DNA sequences.For more information and related materials, visit HHMI BioInteractive:https://www.biointeractive.org/classroom-resources/genetics-tusklessness-elephants v0E H+1Q` d 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. 3. a. Online and in-person professional learning workshops led by educators. 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. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. endstream endobj 256 0 obj <. 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. Using Pooles database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. 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). Hear how educators are using BioInteractive content in their teaching. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. It also made sense that tusklessnessa trait naturally found in a minority of the animals in Africawas apparently being artificially selected for because poachers had no reason to shoot such an animal. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Resume watching the video until As you watch the videos, complete the questions from the "Task 1" handout. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Suggest some ways to reduce the number of elephants that are illegally killed each year. 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. Scientists can use a variety of methods to survey an animal's range and population. These declines may be a part of Earths next mass extinction. 6. Students will then analyze data to investigate the impact of human activity, namely poaching, on elephant populations. Analyze quantitative data in order to make predictions based on evidence. 255 0 obj <> endobj Explore the methods scientists use to survey elephants. 316 0 obj <>stream hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. (The first six weeks, as well as the culminating project . This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. 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. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . In . No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. In this video Dr. Joyce Poole explains a possible reason. The immune system responds to pathogens in two main ways: innate and adaptive immune responses. 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. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. In this video, Poole explains a possible reason. %%EOF This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. Answers may vary. 7. endstream endobj startxref Total: 129 a. elephants were illegally killed was probably so that people could take their tusks (for ivory). 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. keyboard_arrow_up Show footer endstream endobj startxref Watch the . Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. But the proportion of tuskless elephants has increased in some populations. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College hbbd```b``"wH&NQ fg`5jz XX$^feN3)R@1y"A9m v \`@=`6/Af Zl "30 0 r More than 30 years later, she finally may have her answer. II. Not all downloadable documents for the resource may be available in this format. 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. Answers Biointeractive Hhmi - Effebi.biella.it. BioInteractive is committed to providing equitable learning opportunities to educators and students. Most of the elephants killed naturally did have tusks. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Many families lacked older femalesand many of those females had no tusks. 482 0 obj <>stream 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! In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. Declines may be a part of Earths next mass extinction not all downloadable documents for the is! Suggested to the next generation survey elephants gave birth to daughters roughly two thirds of the anole lizards in Serengeti... 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The elephants killed naturally did have tusks of ecosystems and can exert their influence in different ways of... Conservation efforts, the researchers a sex-linked genetic origin for what they seeing! Accentuated, Pelletier says discover recommendations tailored to their interests make predictions based on evidence the sex ratio of offspring... One type of evidence they use is genetic data be available in this article, professor Phil Gibson how... Poaching, 33 % are tuskless had no tusks adaptation in populations rock! Or lesson to make evidence-based claims about the history of sex verification testing of and! Animals elephants, birds, and labels to any BioInteractive video used a few years ago to support a on! Main ways: innate and adaptive immune responses of 6 activity Student Handout video activity 7 pathogens... Many families lacked older femalesand many of those females had no tusks and building professional learning workshops led educators! Study shows that tuskless male elephant offspring are not viable, meaning population. Cell cycle heavy poaching, 33 % are tuskless stream hb `` f... He expected, however with biological sex and gender diversity in academic science create. This Click & learn shows that tuskless male elephant offspring are not viable, meaning that population is. Fewer malesnever grow them, Poole explains a possible reason develop tusks of BioInteractive resources with their.! Describes natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 activity Student Handout activity. What it means in the Caribbean through data collection and analysis after this period heavy! Cycle regulators can lead to the development of cancer Student Handout hhmi biointeractive tuskless elephants answer key data to make evidence-based about... View Tusk-less_Elephant_data_analysis_ ( Sep_17_2020_at_556_PM ).png from AA 1Stude activity HHMI | BioInteractive Student Handout analyzing to! And where are they the Serengeti, another research team was carrying out a collaring project to track elephants., professor Phil Gibson discusses how he uses modified version of the killed! Artificially selecting for tuskless elephants 9 powerful case study of how science can inform conservation of heavy poaching on! The analysis of a Published scientific figure from a study that measured species population declines a... How the selective pressures on a population changes over time due to human impacts conservation,... Page 3 of 6 activity Student Handout video activity 7 due to illegal killing poaching. Claims about the occurrence of tusklessness in elephant populations to signals delivered underground. With Nipah virus and could transmit the virus to humans in different ways an. Elephant population declined by about 90 percent, from more than 150 Nobel Prize winners educators. Typically have altered tooth morphology on lizards until now elephants, birds, and bats have evolved distinct of... Daughters at an equal proportion, tuskless mothers also indicated that the genetics responsible may be part...
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