It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A 42-foot sperm whale has about 7 tons of oil in it.
209
Whales and dolphins can't taste anything other than salt.
11
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The reindeer is the only mammal that can see UV light.
17