Dogs have been man's pet for over 14,000 years.
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The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
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Two dogs were among the Titanic survivors.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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Bats sleep 18-20 hours per day.
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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.
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