An expedition to the Colombian Amazon has just revealed a new species of titi monkey that's the size of a house-cat and sports a bushy red beard.
Animal conservationists have created a Top 10 list of "Wanted Alive" amphibians.
Naturalist Mark Fraser today shares a breathtaking video on the grizzly bear.
A new study documents the first recorded instance of a wild cat species in the Americas mimicking sounds made by its prey.
Female Emei music frogs "sing" during sex to turn on male partners and to insight male-male competition.
Lou Reed and his composer wife, Laurie Anderson, are planning a high-frequency concert for dogs.
As sea ice fragments due to to climate change, polar bear populations may at first show very little ill effect, but then drop precipitously.
The oldest known bat fossil yields important clues to bats' unique senses.
Dogs and whales seem to enjoy a special connection, although researchers aren't yet certain what underlies it. Study the video and photographs showing the apparent dog/whale link and see what you think.
Horses not only remember people who have treated them well, they also understand words better than expected, research shows.