Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Bats sleep 18-20 hours per day.
5
Drivers kill more deer than hunters do.
660
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The elephant brain weighs about 6,000g.
274
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