Learn about animals, including the latest animal news, advancements in animal health research and animal photos.
The sea monsters terrorized the oceans from about 16 million to 2 million years ago, but may have been too big for its own good.
An unknown disease is causing starfish to lose their limbs, dissolve and die.
Researchers fear that we may enter a 'post-antibiotic era' where otherwise 'routine infections become life-threatening.'
The 110-pound lioness, Sirga, romps with her rescuers as if she were the family pet.
Not only do elephants suffer long-term stress when elder relatives are culled, but they also make odd decisions as adults, apparently lacking key social knowledge.
From snakes that model more venomous varieties to flies that pretend to be bees, here are eight pairs of animals that look just alike.
The fossil of the animal's tooth suggests that it was capable of eating not only insects and crayfish, but also certain fish and amphibians, and even small turtles.
Elephants form 'stable groups' that pass on behaviors to younger elephants, but poaching threatens all of this.
Take a look at the thermographic infrared world of lions, and kitty cats, and bears.
Explore.org has affixed several high-definition cameras to locations in Churchill, Manitoba, the 'Polar Bear Capital of the World.'
Video: Department of Aviation workers caught an alligator in Terminal 3 of Chicago's O'Hare International Airport.
Though they are large and numerous, scientists know little about these enigmatic mammals. One team of naturalists is trying to change that.
Travel to the Galapagos Islands to see renowned natural wonders and distinctive wildlife.
The organized state of some fossils from the Triassic era indicate a higher intelligence, like that of the mythical kraken.
Human activity has spurred more changes in biodiversity in the past 50 years than in the 'whole of prior recorded human history,' according to a new study.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.