When cats are happy, they may squeeze their eyes shut.
10
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
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
A dairy cow can produce more milk when listening to music.
446
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4