Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
In zero gravity, a candle's flame is round and blue.
16
Donkeys kill more people annually than plane crashes.
927
Before making Finding Nemo, the animation gurus at Pixar Studios had to take a graduate class in fish biology and oceanography.
13
