Animals
- 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.
- 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.
- 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.
- Animals
Male spiders amputate organs, run faster
Tiny male spiders of a species common to the southeastern United States routinely remove one of their two oversize external sex organs, enabling them to run faster and longer.
- Animals
Hooking the Gullible
Research into fish behavior often reveals ways that bait designers can trick a fish into biting odd-looking lures, but angler appeal can also be an important marketing consideration.
- Animals
Dull birds and bright ones beat so-so guys
The plumage of yearling male lazuli buntings shows signs of a rare form of evolutionary pressure called disruptive selection.
- Animals
Flex That Bill: Hummingbirds’ surprising insect-catching style
High-speed videos of hummingbirds catching insects reveal that their lower bills are unexpectedly flexible.
- Animals
Long Horns Win: Selection in action—Attacks favor spike length for lizards
A hunting bird's quirk—a tendency to impale prey on thorns—leaves a record that has allowed scientists to catch a glimpse of an evolutionary force in action.
- Animals
Wolf vs. Raven? Thieving birds may drive canines to form big packs
A previously underappreciated reason why wolf packs get so big could be the relentless food snitching of ravens.
- Animals
The Social Lives of Snakes
A lot of pit vipers aren't the asocial loners that even snake fans had long assumed.
- Animals
Road rage keeps ants moving smoothly
Streams of ants manage to avoid traffic gridlock by a bit of strategic pushing and shoving.
- Animals
Hornbills know which monkey calls to heed
Hornbills can tell the difference between two kinds of alarm calls given by monkeys.
