The largest earthworm on record was found in South Africa and measured 22 feet.
151
The reindeer is the only mammal that can see UV light.
17
A group of pugs is called a grumble.
10
The seahorse is the only fish to have a neck.
12
Only 3% of bird species have penises.
0
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4