If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cats recognise the voice of their owner, but never evolved to care.
22
A group of unicorns is called a blessing.
304