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The 2,000 gallons of blood that your heart pumps every day travels about 12,000 miles through your body each day, which is four times the size of the U.S.

First appearing about 135 to 190 million years ago, the colorful petals and sweet scents of flowers are brilliant evolutionary adaptations designed to attract pollinators such as bees, birds, and bats.

Lil bb blastover from a while back. Hamstrings are unique because they cross both the hip and the knee joints. This allows them to perform two main jobs: bending the knee and pulling the leg straight back behind the hip.