On a hot February morning, Galápagos National Park rangers released 50 giant tortoises back to Floreana Island—marking the ...

The X-Files has 10 total seasons, and here is the single best episode from every season of the sci-fi show's run.

When ancient humans mated, dad was a Neanderthal, mom was Homo sapiens.

Geneticists have a better understanding of how prehistoric pairings unfolded, with new research suggesting they were mostly between male Neanderthals and female humans.

This tiny shelter cat has four ears, a curled tail, and the sweetest little face.