Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A dork is a whale's penis.
327
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
The cat brain weighs about 30g.
167
The largest breed of rabbit is the Flemish Giant.
65