Cows can sleep standing up, but they can only dream lying down.
745
A group of unicorns is called a blessing.
304
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
When dragonflies mate, their tails form a love heart.
22
Jellyfish as a species are actually older than dinosaurs and sharks.
383
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12