Animals

  1. Brain

    A dog’s amazingly large vocabulary

    A border collie named Rico recognizes a surprisingly large number of words.

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  2. Animals

    Hippo sweat is natural sunscreen

    Hippo "sweat" contains substances that fight microbes and screen out ultraviolet light.

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  3. Animals

    Prime time for cicadas

    Researchers are tracking down why some types of cicadas emerge in vast numbers only once every 17 years.

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  4. Ecosystems

    Frogs get poison from ants

    The skin of some frogs becomes poisonous after they eat certain kinds of ants.

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  5. Animals

    Noisy boats may bother orcas

    Whale watcher boats may be so noisy that killer whales must change their calls to be heard.

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  6. Genetics

    What makes a dog?

    Analyzing dog DNA is helping to explain the origin, behavior, and diseases of dogs.

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  7. Animals

    Male baboons get mellow

    Females may get male baboons to tone down violent behavior and become more cooperative.

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  8. Animals

    Snagging insects, hummingbird style

    A hummingbird has an unexpectedly flexible lower bill to help it catch bugs.

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  9. Animals

    Ganging up to grab more food

    Food-snitching birds may drive wolves to hunt in large packs.

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  10. Animals

    Sea otters, kelp, and killer whales

    Learning more about sea otters can help rescue the animals and save coastal ecosystems.

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  11. Animals

    Some birds heed a monkey’s warnings

    An African forest bird can tell which monkey alarm calls to pay attention to.

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  12. Genetics

    A butterfly’s new green glow

    Scientists have tweaked a butterfly's genes to make its eyes glow green.

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