1. Animals

    Just turn your back, Mom

    A female in a species of legless amphibians called caecilians nourishes her youngsters by letting them eat the skin off her back.

  2. Animals

    Bird hormone cuts noise distractions

    A jolt of springtime hormones makes a female sparrow's brain more responsive to song.

  3. Animals

    Grammar’s for the Birds: Human-only language rule? Tell starlings

    A grammatical pattern called recursion, once proposed as unique to human language, turns out to fall within the learning abilities of starlings.

  4. Animals

    Worm can crawl out of predators

    A parasitic worm can wriggle out through a predator's gills or mouth if the predator eats the worm's insect host. With video.

  5. Animals

    Into Hot Water: Lab test shows that worms seek heat

    Worms from deep-sea vents prefer water at temperatures near the upper limit of what animals are known to survive.

  6. Animals

    Foodfree growth

    Rattlesnakes undergo a hibernation-like state to survive long periods of famine, while continuing to grow longer.

  7. Animals

    Hummingbirds can clock flower refills

    Hummingbirds can keep track of when a particular flower has replenished its nectar and is worth visiting again.

  8. Animals

    Sharpshooter threatens Tahiti by inedibility

    A North American insect is menacing Tahitian ecosystems by getting itself killed and proving surprisingly toxic to its predators.

  9. Animals

    Wary male spiders woo lifelessly

    When trying to court a cannibalistic female spider, males of a certain species play dead.

  10. Animals

    Hairy crab lounges deep in the Pacific

    A newly discovered deep-sea creature has the body of a crab, but with long, fluffy, blonde hair covering its legs.

  11. Animals

    That’s One Weird Tooth

    The narwhal's distinctive spiral tusk has structures that could make it phenomenally sensitive, raising new questions about its functions.

  12. Animals

    Woodpecker video is challenged and defended

    The video released last spring as evidence that the ivory-billed woodpecker exists may show a common pileated woodpecker, some critics say.