The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Dogs have been man's pet for over 14,000 years.
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Penguins have a gland above their eye that turns saltwater into freshwater.
12
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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