Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
An adult giraffe's tongue is 17 inches long.
28
Over 10,000 birds a year die from smashing into windows.
47
Slugs have 4 noses!
17
Eagles mate while airborne.
44
Most tropical marine fish could survive in a tank filled with human blood.
54
It was discovered on a space mission that a frog can throw up.
52