Rattlesnake mating sessions have been known to last more than 22 hours.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Female kangaroos have three vaginas.
2
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12