(CNN) — One of the best things that can happen to a zoo or aquarium is for one of their resident animals to go viral. Just look at the multi-hour-long lines to see Moo Deng, a pygmy hippo in Thailand ...

Cute features in babies and animals are more than just amusing—they trigger powerful evolutionary responses that help our species’ survival. Moo Deng, the baby pygmy hippo that has become famous ...

In August of 2013, the world was stricken by Bao Bao Fever. So incredibly cute was the National Zoo's new giant panda cub that nine-to-fivers inexplicably cooed at their co-workers. Precious man hours ...

From relatable content to funny babies and comical memes, social media and internet users are no strangers to viral content. Although the viral content has changed from time to time, one specific type ...

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, ...