Dogs can detect if someone has cancer just by sniffing their breath, a new study shows.

A small, furry, fossilized animal discovered in China resembles a hybrid of modern and prehistoric mammals, experts say, providing important clues to mammal evolution.

Ants teach their younger kin how to find a food stash, a behavior that could be the first known example of a teacher-pupil relationship in a nonhuman animal, researchers report.

Researchers say they have solved an 11-million-year-old puzzle: how a single feline-like ancestor in Asia developed into the world's 37 living cat species.

Stealing a last, long-lashed glance in Pakistan, a festively attired camel has a key role in the Muslim feast of sacrifice.

Snuppy really is the world's first cloned dog. But Korean scientist Woo Suk Hwang faked human embryo clone and stem cell research, an investigation confirms.

A new program in Cambodia aims to save the giant catfish—the largest freshwater fish in the world—from extinction.

Join conservationist Zeb Hogan as he goes in search of the world's largest freshwater fish—Southeast Asia's giant catfish—and explore his efforts to bring it back from the brink of extinction.

Visit one of the largest dog resorts in the nation and see how pampered pooches in the U.S. enjoy a day at the spa.

Cutting down the last remaining trees greatly reduces some burned forests' ability to bounce back, a new study says.

The return of a top predator in a Bahamas marine reserve is proving to be unexpectedly beneficial to the coral reef it calls home, a new study says.

The strength of a unique bond between a young hippo and a 130-year-old tortoise will be tested later this spring when conservationists introduce a female hippo to the mix.

Researchers say they have traced the diets and migration patterns of elephants in Kenya by examining the hair at the tips of their tails.

Are humans to blame for deadly disease outbreaks among chimpanzees in Africa? Join researchers in Tanzania as they investigate if tourists are carrying illnesses into the wild.

Australian dinosaurs may have been its neighbors, but a new mammal has an even more outlandish claim to fame. After losing a bet, a scientist named the species after Cadbury chocolate.