Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.

  1. Animals

    There’s no ‘i’ in elephant

    These clever mammals may know when two trunks are better than one.

  2. Animals

    Doing the Bob

    A crane's jerky neck movements may allow the bird to see its food more clearly.

  3. Animals

    A microbe nanny for young wasps

    A smear of bacteria helps baby wasps survive infancy.

  4. Animals

    Blotchy face, big-time wasp

    If paper wasps pretend to be something they're not, their peers get angry.

  5. Brain

    Fair play

    Studying dogs, monkeys, and other animals at play can teach us about fairness and cooperation.

  6. Animals

    An inspiring home for apes

    A group of scientists wants to establish preserves where orangutans and other primates have the chance to learn and create.

  7. Environment

    Alien invasions

    Around the world, plants, animals, fungi, and other life forms are ending up in places where they don't belong.

  8. Fossils

    Did dinosaurs do handstands?

    Enormous dinosaurs might have balanced on their front feet when wading in shallow water.

  9. Animals

    City birds hit the high notes

    Some songbirds battle traffic noise by singing at a higher pitch.

  10. Animals

    Booby brothers and bullies

    Baby brown boobies can be pretty rough and tough in the nest.

  11. Animals

    Better tools for techno crows

    Certain crows can make tools and even refine their designs.

  12. Animals

    Childhood chills give bees six left feet

    If the bees are raised in cold temperatures, their dancing skills seem to go down the drain.