Woodpeckers that listen to others of their kind drum into trees alter their behavior based on what they hear.
The Brazilian torrent frog has the most sophisticated visual communications system yet documented for a frog species.
Understanding the regional vocal patterns of various canid species sheds light on animal communication and could help ranchers broadcast "keep away" messages to protect livestock...
The big cats can still have a home in Africa, so long as the international community is willing to finance it
Arachnophobic study subjects estimated the size of spiders as bigger than did people who do not fear the eight-legged beasties. Jason Goldman reports.
Aegean wall lizards are the first wild animals to be observed explicitly choosing the best background for their particular coloration to disappear into.
Pairs of the birds stay together no matter what—even if it means one loses out on a meal
Sharks that could smell headed straight back home when taken a few miles away whereas some that had their senses of smell blocked took slower, more erratic paths to their old haunts...
More members of an urban swan population that lets humans get near have a particular genetic variant than do a rural swan group that tends to take off when humans approach.
Hippos eat meat more than had been thought, a practice that could explain their susceptibility to anthrax die-offs when they consume infected animals.
Almost all southern right whale calves off the coast of Argentina’s Peninsula Valdez are being fed upon, some fatally, by kelp gulls, which was a rare occurrence four decades ago ...
And the ungulates operate by majority rule
Among howler monkey species, loud calls come at the expense of testicle size and sperm production—or to put it another way, monkeys with the largest testes don't make as much noise...
Sick red colobus monkeys in Uganda ate the very same plants that local people use to treat illnesses
The answer could well be “no”
The brown thornbill scares away its attacker by pretending an even bigger bird is nearby
And they expend energy to do so
Fruit bats stand in for vocal-learning mammals in isolation tests to test language development
Ants are known for their cleanliness. Why would they store their waste?
UV radiation may explain why plants and animals closer to the equator come in darker varieties