The reindeer is the only mammal that can see UV light.
17
Sharks have been on the planet longer than trees.
14
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Early American humans hunted car-size armadillos and used their shells for houses.
12
A lion in the wild usually makes no more than twenty kills a year.
186