Early American humans hunted car-size armadillos and used their shells for houses.
12
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
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
A group of unicorns is called a blessing.
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