How gorgeous is this week-old silvery gibbon baby?

Tigers are the largest members of the cat family.

Blue whales can weigh up to an incredible 170,000 kg (375,000 pounds)!

Hedgehogs are famous for their prickly spines, which they have everywhere except on their face, legs and bellies.

The sloth is the world's slowest mammal.

Jaguars are the largest of South America’s big cats and the third largest cats in the world!

Polar bears are the charismatic icon of the Arctic and the largest living carnivores on Earth.

Fast, intelligent and tiny – hummingbirds are incredible creatures!

What has a face like a fluffy kitten, a tail like a raccoon, a bear-like body and lives in a tree?

This little marsupial is an important ecosystem engineer.