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.
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In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Whales and dolphins can't taste anything other than salt.
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