These teacup-sized dogs are so tiny that sometimes you don’t even notice when someone is carrying one around in their purse. According to Guinness World Records, the smallest Chihuahua ever is named ...

The Kodkod is downright adorable, if you can manage to find one.

It’s that time of year again: PEOPLE magazine is on the search for the World’s Cutest Dog. The magazine has partnered with Pedigree for the eighth year in a row. Entries are open most of the month, ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

Discover how extreme animal sizes, from the massive blue whale to the tiny shrew, shape their survival strategies.