Learn about animals, including the latest animal news, advancements in animal health research and animal photos.
Scientists replace the liver cells of mice with human hepatocytes to test novel therapies for human liver diseases.
From Africa to Japan, animal researchers are discovering the extraordinary abilities elephants for language and even numbers.
New research shows deforestation during the 20th century has forced songbirds to rapidly change their wings.
Video: But the gift of gab gives humans an edge in cooperation skills.
Video: Alligators were once the undisputed kings of the Everglades, but which animal would win the battle between gators and giant pythons?
Circus animal gets away from handlers, causes a stir during rush hour.
Infected with a contagious parasite, ants martyr themselves by voluntarily leaving the nest to save their kin.
There were so many adorable puppies entered in the Green Dog of the Year Contest, that we couldn't resist! Here's a gallery of 10 green puppies.
2,000 light-bellied brent geese are missing after finding their usual winter feeding grounds frozen in an especially harsh winter.
The bigger the tank, the more energy needed to keep those lights, aerators and pumps operating, so keep it simple, small and freshwater.
What does a green dog do? Check out the contestants. Enter your dog now!
Study suggests bats are excellent fliers when drunk, even with blood-alcohol levels that far exceed the legal limit for humans.
Humans like to think of themselves as faithful, but when it comes to true fidelity, many other species offer a better example of how to keep a relationship together.
Video: A goose in Florida goes after a fisherman in his kayak. WCNC's Michelle Boudin reports.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.