The oldest recorded elephant lived for 82 years.
213
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
In Australia, there are spiders big enough to eat snakes.
20
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
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
There's a rare breed of pig that looks like a sheep.
14
A cow produces around 200,000 glasses of milk in her lifetime.
373