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 ...

You might expect danger to come with claws or size, but the real threat often comes in small, quiet forms. These animals kill using venom, parasites, or pure stealth. And in some cases, just being in ...

A group of small, freshwater animals (bdelloid rotifers) protect themselves from infections using antibiotic recipes 'stolen' from bacteria, according to new research. This raises the potential that ...

TUCSON, Ariz. (AP) -- Roughly 250 small animals that were transferred from California to Arizona may have ended up being fed to reptiles, according to two humane societies. Tucson TV station KVOA ...

This video shows small animals in quiet moments where their reactions and body language speak for themselves as they look around, shift slightly, or simply remain still in a familiar space. ABC ...