Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
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 most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Dolphins have names for one another.
18