Dogs have been man's pet for over 14,000 years.
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Rattlesnake mating sessions have been known to last more than 22 hours.
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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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The head of a jellyfish is called the "Bell."
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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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