Ever heard of a pudu? They're the world's smallest species of deer. They bark when they sense danger, and have a few other odd behavioral characteristics. This one was born at the Queens Zoo last month.

This adorably tiny fawn, a male, was born May 17. The zoo has a breeding program to fuel the growth of the pudu population. Southern pudu are native to Chile and Argentina and are designated as vulnerable by the International Union for Conservation of Nature (IUCN).

Pudu have some odd behavioral adaptations: they bark when they sense danger and, when chased, run in a zigzag pattern to escape predators, and although they're only about 12 to 14 inches tall, they can jump high and run fast.