Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
There's a rare breed of pig that looks like a sheep.
14
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Lobsters have blue blood.
476
Sharks have been on the planet longer than trees.
14
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12