Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Parrot parents "name" their children with a signature call.
112
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
The seahorse is the only fish to have a neck.
12