Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
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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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