Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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
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
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47