Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
The cat brain weighs about 30g.
167
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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The oldest recorded elephant lived for 82 years.
213