Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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When dragonflies mate, their tails form a love heart.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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A 42-foot sperm whale has about 7 tons of oil in it.
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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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