It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A group of kittens is called a "kindle".
10
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Only 3% of bird species have penises.
0
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11