A puppy is born blind, deaf, and toothless.
16
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12