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  • Visualizing New Worlds

    Visualizing New Worlds

    Image of the Week

    Frederic Edwin Church’s oil painting, “The Heart of the Andes” caused quite a stir when it was unveiled in New York on April, 27, 1859

  • Portrait of a Howler

    Portrait of a Howler

    Image of the Week

    Groups of black howler monkeys (Alouatta caraya) “howl” to each other in the Amazon rainforest during the evening and early morning hours in order to maintain neighborly distances.

  • Who Am I?

    Who Am I?

    Image of the Week

    The caterpillar of the spicebush swallowtail butterfly (Papilio trollus) mimics the rough green snake (Opheodrys aestivus).

  • Spiny Cells

    Spiny Cells

    Image of the Week

    A drawing, made by Santiago Ramón y Cajal of pyramidal neurons in the cerebral cortex of a rabbit, documented the presence of dendritic spines on the surfaces of some of the cells.

  • Spooky Sedge

    Spooky Sedge

    Image of the Week

    Oh the horror! A cross-section of the stem of yellow nut sedge plant (Cyperus esculentus)

  • Discovering Keystone Species

    Discovering Keystone Species

    Poster

    This classroom poster illustrates Robert Paine’s pioneering experiment that demonstrated the importance of top-down regulation of ecological communities by predators and led to his coining of the term keystone species.

  • Film Guide for Some Animals are More Equal than Others

    Film Guide for Some Animals are More Equal than Others

    Film Guide

    The following classroom-ready resources complement the film Some Animals Are More Equal Than Others: Trophic Cascades and Keystone Species. It tells the story of the bold experiments by Robert Paine and James Estes, which established the importance of keystone species in regulating ecological communities and the cascades of effects set in motion by their removal.

  • Written in Chalk

    Written in Chalk

    Image of the Week

    The world’s chalk deposits are made of fossilized remains of the shells of tiny microscopic algae.

  • Spanish BioInteractive

    Spanish BioInteractive

    Collection

    A selection of short films, animations, classroom materials, and interactive features that are available in Spanish. Go to the resource pages below to find links to view or download the Spanish...

  • Plaque Attack

    Plaque Attack

    Image of the Week

    An amyloid plaque (in purple) is surrounded by branches of damaged neurons (multiple colors) in the brain of a mouse with Alzheimer’s disease.

  • Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades

    Short Film

    (19 min 29 sec) Keystone species and trophic cascades are fundamental concepts in ecology. This short film tells the story of how these concepts were first established through the pioneering experiments of two young researchers: Robert Paine and James Estes.

  • The Heart of the Matter

    The Heart of the Matter

    Image of the Week

    Early theories of the heart’s role were largely based on its central position in the body.

  • Animated Life: The Living Fossil Fish

    Animated Life: The Living Fossil Fish

    Animated Short

    (7 min 18 sec) This animated short film tells the engaging tale of the discovery of the coelacanth.

  • Animated Life: Mary Leakey

    Animated Life: Mary Leakey

    Animated Short

    (7 min 52 sec) This animated short film recounts the life and work of paleoanthropologist Mary Leakey, including her discovery of the Laetoli footprints.

  • Animated Life

    Animated Life

    Collection

    These five short films, produced in conjunction with The New York Times, bring to life five historical scientific discoveries and the people behind them: Alfred Russel Wallace and his contribution to...

  • Living Dinosaurs: Fact or Fiction?

    Living Dinosaurs: Fact or Fiction?

    Activity

    Students evaluate and discuss statements about the evolutionary relationship between birds and dinosaurs and other facts about these groups, before and after watching the short film Great Transitions: The Origin of Birds. Also available in Spanish.

  • The Origin of Birds Film Guide

    The Origin of Birds Film Guide

    Film Guide

    The following classroom-ready resources complement Great Transitions: The Origin of Birds. Featuring vertebrate paleontologist Dr. Julia Clarke, the film walks us through the evidence that birds are a lineage of theropod dinosaurs. 

  • The Origin of Species

    The Origin of Species

    Collection

    Our planet has millions of species, including thousands of mammals, fish, birds, and reptiles, and even more butterflies, beetles, and other animals, each adapted to one of an enormous variety of...

  • Icefish Film with Quiz

    Icefish Film with Quiz

    Interactive Video

    (13 min 14 sec) Embedded quiz modules test students’ understanding as they watch the short film on the icefish—an example of how genes are reused and recycled.

  • Mesozoic Film with Quiz

    Mesozoic Film with Quiz

    Interactive Video

    (33 min 43 sec) Embedded quiz modules test students’ understanding as they watch the short film on the asteroid that caused the extinction of the dinosaurs.

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