It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
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
Female kangaroos have three vaginas.
2
Dolphins have names for one another.
18