The cat brain weighs about 30g.
167
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Sharks, like other fish, have their reproductive organs in their chests.
248
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17