Throughout the animal kingdom, there are animals that form bonds that last a lifetime, showing loyalty and partnership that can be surprising to people. From birds to mammals, these creatures stick ...

From mantises that both eat and mate with their suitors at once to baboon couples that can’t turn off the PDA, these animal mating rituals are both crucial and wildly entertaining. 0:00 - Intro to 13 ...

All animals need sleep. When humans or animals don't get enough, it can lead to trouble paying attention, irritability, and other ill effects. And yet, researchers reporting in the journal Current ...