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TIL that in 2019, U.S company BIOLIFE4D 3D printed a miniature human heart with many of the same functions and structures as a real, full-sized human heart.

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NXgrQ TIL the Binturong, also known as the bearcat, has musk glands emit an odor reminiscent of popcorn or corn chips.
JYV0Q TIL the “foot” has two official lengths in the United States: That of the International Foot and that of the US Survey Foot
rMEd TIL A snake’s heart can move around its body to protect it from harm when it’s eaten large prey
Rvp6 TIL a $1 bill received in a balloon from South Korean activists buys 9 pounds of corn, and is like winning the lottery for some in North Korea.
VMnD0 TIL Mark Spitz, a 9 time Olympic Champion jokingly told the Russian swim team coach in 1972 that his moustach increased his speed in the water, deflecting water away from his mouth. The next year, every Russian swimmer was sporting one.