Domestic pigs average a top speed of about 11 miles per hour.
182
The Basenji dog is the only dog that is not able to bark.
4
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
When dragonflies mate, their tails form a love heart.
22
A domestic cat can sprint at about 31 miles per hour.
274
The most expensive cow in the world was sold in 2009 for $1.2 million.
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