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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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Sharks have been on the planet longer than trees.
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The colossal squid has the largest eyes in the world.
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Sheep, goats, octopuses, and toads have rectangular pupils.
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