A group of pugs is called a grumble.
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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.
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Americans spend more than 5.4 billion dollars on their pets each year!
10
Dogs can make about 100 different facial expressions.
18
The heart of a mouse beats 650 times per minute!
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The largest earthworm on record was found in South Africa and measured 22 feet.
151
On average, it takes 660 days from conception for an elephant to give birth.
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