Koalas nearly went extinct 100,000 years ago, long before humans arrived
Despite the collapse, the species survived and continues to live across Australia today
Polar bear paws are built to stop a 600 kg animal from slipping on ice
Tiny grip bumps and a layer of fur on the bottom of their paws help them stay stable while walking across frozen terrain
The platypus may be the weirdest animal on Earth
With a duck-like bill, beaver-like tail, otter-like feet, venomous spurs and the ability to glow under UV light, the platypus is one of nature's strangest creations
Meet the bald uakari, a unique monkey native to the tropical rainforests of the Amazon Basin
Their bright red faces are a sign of good health, while their unusually short tails set them apart from most monkeys. They are adapted to life in the flooded forests of the Amazon
Ants can build living bridges to cross rivers
Thousands of ants link their bodies together and continuously adjust the structure to help the colony reach the other side safely