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Circulatory system: Blood vessels Laid end-to-end, an adult's arteries, veins and capillaries would stretch for about 100,000 miles - enough to wrap around the world nearly four times.

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April 14, 2025 • Did you know there's an insect that can fling its pee 40 times faster than a cheetah accelerates? We did — thanks to a comic from the Bhamla Lab at the Georgia Institute of ...