A hummingbird weighs less than a penny.
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Flamingos pee on their legs to cool themselves off.
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Roosters can't crow if they can't fully extend their necks.
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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
Some breeds of chickens lay colored eggs!
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Dragonflies have six legs but cannot walk!
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The world's smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
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