In the case of domestic cats, dogs and many other domesticated species, intentional and unintentional selection by humans ...

A video of a dog reacting to smelling his canine sibling's fur months after his death left viewers sobbing.

The dog "lit up" after the owner let him sniff his sibling's fur after the canine passed a few months ago.

Even compared to chimpanzees, one of our closest relatives, humans' scrapes and cuts tend to stick around for more than twice ...

Learn how human healing compares to healing in other primates and mammals, whose fur may help their skin stitch itself ...