Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
A puppy is born blind, deaf, and toothless.
16
Cats sleep for 70% of their lives.
8
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The seahorse is the only fish to have a neck.
12
Only 3% of bird species have penises.
0