1. Animals

    Why does a buddy help another male flirt?

    The sidekick male in the two-bird courtship display of lance-tailed manakins has to leave when the mating starts but may reap delayed benefits in real estate and performance practice.

  2. Animals

    Farmer ant species may have lost all its males

    A fungus-growing ant may be the first ant species known to have no power of sexual reproduction.

  3. Animals

    Jumping spiders buzz, thump when dancing

    Some jumping spiders, long considered visually oriented animals, turn out to utilize seismic communication for a successful courtship.

  4. Animals

    Hot Bother: Ground squirrels taunt in infrared

    California ground squirrels broadcast an infrared signal when confronting a rattlesnake.

  5. Animals

    Thoroughly Modern Migrants

    Butterflies and moths are causing scientists to devise a broader definition of migration and this has raised some old questions in new ways.

  6. Animals

    A tale of new whiskers

    A newly discovered, featherweight tree mouse with an unexpected evolutionary past has survived widespread habitat destruction on the Philippine island of Luzon.

  7. Animals

    Well-Tuned Bats: These animals are what they hear

    Two studies of bats find that neighbors can live in virtually different worlds because their echolocation calls are tuned to detect different prey.

  8. Animals

    Turtle Trekkers: Atlantic leatherbacks scatter widely

    Satellite monitoring of leatherback turtles in the Atlantic show that these animals range widely instead of sticking to "turtle corridors."

  9. Animals

    Red Sweat: Hippo skin oozes antibiotic sunscreen

    The hippo version of sweat, which is red-orange, contains pigments that can block microbial growth and some ultraviolet light.

  10. Animals

    Toxin Takeout: Frogs borrow poison for skin from ants

    Scientists have identified formicine ants as a food source from which poison frogs acquire their chemical weapons.

  11. Animals

    Din among the Orcas: Are whale watchers making too much noise?

    Whale-watching boats may be making so much noise that killer whales off the coast of Washington have to change their calls to communicate over the racket.

  12. Animals

    Shielded cells help fish ignore noise

    Fish can sort out the interesting ripples from the background rush of water currents through sensors shielded in canals that run along their flanks.