Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The head of a jellyfish is called the "Bell."
6
Only 3% of bird species have penises.
0
Dogs sometimes fake being sick to get attention.
26
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
The largest earthworm on record was found in South Africa and measured 22 feet.
151