Unlocking the secrets of the universe can be a massive undertaking. But as researchers have learned, it only takes a single furry or winged beast to throw our cosmic endeavors right off the rails.

Experience the quick and cunning world of a weasel with this intimate close-up video. The footage focuses on the animal's face, highlighting its small, beady eyes and a pointed snout that is ...

Biologists this winter confirmed the rare sighting of a fisher living in the habitat north of Merced River in Yosemite National Park. The fisher is a “very rare and secretive member of the weasel ...