Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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The largest breed of rabbit is the Flemish Giant.
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Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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