Female hyenas may be out for cubs’ blood — even within their own clans. New research suggests that infanticide may be part of a strategy females use to maintain ...

Adult mammals have the capacity to kill other members of their own species, but males and females generally seem to kill for different reasons. Biologists have already studied mammalian infanticide, ...

This course is really--and by that I mean insanely--hard to finish, but you wouldn't know it by watching Kacy Catanzaro. American Ninja Warrior is a competition show where some of the most athletic, ...