Dogs have been man's pet for over 14,000 years.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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Gorillas can catch human colds and other illnesses.
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15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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