The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Cows can sleep standing up, but they can only dream lying down.
745
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
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3