There's a rare breed of pig that looks like a sheep.
14
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
The seahorse is the only fish to have a neck.
12
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4
The cat brain weighs about 30g.
167