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  • Sodium Channel Evolution in Electric Fish

    Sodium Channel Evolution in Electric Fish

    Data Points

    Scientists investigated how gene duplication contributed to the evolution of electric fish.

  • Photosynthesis

    Photosynthesis

    Animations

    (10 min 41 sec) This multipart animation series explores the process of photosynthesis and the structures that carry it out.

  • Testosterone Levels in Elite Athletes

    Testosterone Levels in Elite Athletes

    Data Points

    Scientists compared the testosterone levels of Olympic-level elite athletes.

  • White-Nose Syndrome

    White-Nose Syndrome

    Phenomenal Images

    Students explore images of bats with an infectious fungal disease as phenomena to learn about population dynamics and disease impacts.

  • White-Nose Syndrome in Bat Populations

    White-Nose Syndrome in Bat Populations

    Data Points

    This activity guides the analysis of a published scientific figure from a study that modeled the impact of an infectious fungal disease on a bat population.

  • Why Two Heads?

    Why Two Heads?

    Phenomenal Images

    Students explore images of planarians regenerating body parts as phenomena to explore cell division and differentiation.

  • Developing an Explanation for Tuskless Elephants

    Developing an Explanation for Tuskless Elephants

    Lessons

    This activity builds on information presented in the video Selection for Tuskless Elephants. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations.

  • Baboon Longevity Under Adversity

    Baboon Longevity Under Adversity

    Data Points

    This activity guides the analysis of a published scientific figure from a study on how adversity in early life impacts the long-term survival of baboons.

  • Mate Choice in Spiders

    Mate Choice in Spiders

    Data Points

    This activity guides the analysis of a published scientific figure from a study that investigated how males in a species of sexually cannibalistic spiders choose their mates.

  • Analyzing Data on Tuskless Elephants

    Analyzing Data on Tuskless Elephants

    Lessons

    This data-driven activity accompanies the video Selection for Tuskless Elephants. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations.

  • The Wolves of Isle Royale

    The Wolves of Isle Royale

    Phenomenal Images

    Students explore photos of wolves hunting a moose on Isle Royale as phenomena to explore the effects of predation on population dynamics.

  • Understanding Global Change

    Understanding Global Change

    Click & Learn

    This interactive module allows students and educators to build models that explain how the Earth system works. The Click & Learn can be used to show how Earth is affected by human activities and natural phenomena.

  • Cougars and Trees in a Trophic Cascade

    Cougars and Trees in a Trophic Cascade

    Data Points

    This activity guides the analysis of a published scientific figure from a study that investigated the effects of tourism on cougars and cottonwood trees in a national park.

  • Asking Scientific Questions

    Asking Scientific Questions

    Lessons

    This activity allows students to formulate and analyze scientific questions.

  • Cancer Cell Invasion

    Cancer Cell Invasion

    Phenomenal Images

    Students explore a photo of tissues and cells as a phenomenon to explore the invasion of cancer cells into muscle tissue.

  • Great Transitions Interactive: Human Origins

    Great Transitions Interactive: Human Origins

    Click & Learn

    This interactive module allows students to examine fossils of early humans and compare them to modern primates.

  • Sex Verification Testing of Athletes

    Sex Verification Testing of Athletes

    Click & Learn

    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.

  • Exploring Biomass Pyramids

    Exploring Biomass Pyramids

    Click & Learn

    This interactive module allows students to collect and analyze data from a virtual river to construct biomass and energy pyramids.

  • Serengeti Wildebeest Population Regulation

    Serengeti Wildebeest Population Regulation

    Data Points

    This activity analyzes a published scientific figure from a study in Serengeti National Park, Tanzania. In this study, scientists investigated how the eradication of rinderpest disease led to a boom in the wildebeest population.

  • How Science Works

    How Science Works

    Click & Learn

    This interactive module allows students and educators to document, annotate, and reflect upon scientific research processes.

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