We human beings belong to a very exclusive group of animals. There are only four types of "great apes" in existence today, those being humans, chimpanzees, orangutans, and gorillas. As the name "great ...

Advancing science may make it possible to bring back extinct species like the dire wolf—but should it? CU Boulder environmental studies and philosophy Professor Ben Hale says the answer is complicated ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...