Like big, tall trees in old-growth forests, older animals are irreplaceable. Pulling them out leaves the ecosystem less ...

Directed by Thomas Cailley, the film opens in theaters and arrives on VOD March 15. Related videos Kapow! Building the Classy Lego ’66 Batmobile Megan Fox Is an Eerie Android in Exclusive Clip ...

where the nuclei of human cells are inserted into animal eggs. The resulting embryos would be kept for up to 14 days to harvest stem cells. In the present state of science, hybrid embryos are ...

But human attitudes ... on when it comes to animals. Like many other Americans, Fallows reckoned, he’d never eat his own pets ...

Following is a transcript of the video. Narrator: Cheetahs are the fastest land animal in the world. But did you know that humans can leave them in the dust? At least, in the long run. That's ...

This past spring, Harvard University evolutionary biologist Joanna Wolfe, Ph.D., was in Okinawa, Japan, gathering information for her research on carcinization, or the study of how animals take ... t ...