(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 ...

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 ...

Tula-Tu, the elephant calf born earlier this month, is undeniably cute. But she isn’t the first baby animal to cause visitors to Portland’s zoo to audibly say, “Awwwwww.” Here are 12 sweet animal ...

At this point, photos of cute baby animals are practically the currency of the Internet. Add a newborn otter or a teeny hedgehog to your next YouTube video, and it instantly ups the odds that it will ...