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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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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The reindeer is the only mammal that can see UV light.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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