Domestic pigs average a top speed of about 11 miles per hour.
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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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Female kangaroos have three vaginas.
2
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13