On average, there's 300 billion neurons in the octopus brain.
129
Beavers can swim half a mile underwater on one gulp of air.
31
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
A completely blind chameleon will still take on the colors of its environment.
43
The octopus' testicles are located in its head.
82