There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
The Basenji dog is the only dog that is not able to bark.
4
Dolphins have names for one another.
18
Two dogs were among the Titanic survivors.
262
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
In Australia, there are spiders big enough to eat snakes.
20