Human birth control pills work on gorillas.
52
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Hummingbirds can weigh less than a penny!
12
Beavers can swim half a mile underwater on one gulp of air.
31
Bluebirds cannot see the color blue.
40
A hummingbird weighs less than a penny.
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The world's smartest pig, owned by a mathematics teacher in Madison, WI, memorized the multiplication tables up to 12.
264