Learn about animals, including the latest animal news, advancements in animal health research and animal photos.
A woman whose cat eats tortilla chips explores the ins and outs of what's healthy -- and, more importantly, not dangerous -- for her feline.
A pygmy hippo -- a native of Africa -- shot in Australia? The author says it's true, and it's an example of a brave new world.
Zimbabwean man killed in South Africa by a shark described by witnesses as 'gigantic' and 'dinosaur huge'.
What does a green dog do? Check out the contestants. Enter your dog now!
More man-made toxins, such as mercury and chemical coolants, are reaching the Arctic and are increasing in the polar bear's food sources.
Scientists discover chlorophyll-producing sea slug that can carry out photosynthesis using genes swiped from plants.
Do dogs have nationalities? Do orangutans? And if so, why? Who has the right to claim them as their own?
Scientists observe problem-solving in freshwater fish.
Endemic species are more likely to form in biologically isolated areas such as islands and large bodies of water and run a higher risk of extinction because of their geographic isolation.
Monkeys and apes think in sentences and are physically capable of talking, but they simply don’t care to converse.
Fungus-farming ant species evolved beyond the need for males within the last 1 to 2 million years, but asexual species generally don't last very long.
Video: A camera trap catches a family of rare Sumatran tigers on the move in the jungle. Msnbc.com's Alan Boyle reports.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.