Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Dolphins have names for one another.
18
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The largest earthworm on record was found in South Africa and measured 22 feet.
151
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6