Zookeepers get clever to weigh animals

10 famous horses from history

Ancient marsupial 'micro lion' discovered in Australia

Seal hops on tour boat as killer whales circle

Orphaned cougar cubs get a second chance at The Wildcat Sanctuary

Sea urchins have the weirdest way of being born

It's good to be the king! Penguin gets a promotion at Edinburgh Zoo

Kama the surfing pig loves to hang 10

Rare aquatic cats that fish with their paws are on the brink of extinction

11 animals on the verge of extinction

Fort Polk horses to be rounded up and sold

8 close calls with whales