Also known as the mousedeer, these creatures are the smallest hoofed mammals in the world.

Remarkably, the Tragulidae family it belongs to has been widespread from the Oligocene epoch (34 million years ago) through the Miocene epoch (5 million years ago) and has remained practically unchanged in all this time.

The chevrotain is a solitary creature, although it has been known to live in pairs.

Although most species of chevrotain are vegetarian, the water chevrotain occasionally feeds on insects, crabs and even small fish.

Oddly enough, this particular species’ affinity with water has lent support to the theory that whales evolved from water-loving creatures that looked like small deer.