› added 7 years ago

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TIL the red juice oozing out of your steak is not blood, it's myoglobin, a protein that’s found in muscle tissue

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b96pZ TIL: That Sloths have been around for 64 million years
KOAoR TIL, Tennessee Aquarium in the United States is home to an electric eel that uses its electrical discharges to post from its own Twitter account when it emits electricity at a high enough threshold.
6EVj8 TIL every Christmas in Lexington, Kentucky, you can pay off your tickets with canned food donations
XdvR TIL there are only three species that go through menopause: humans, killer whales, and short finned pilot whales
wo6a8 TIL the zipper, originally called the “Hookless Fastener” and patented as the “Separable Fastener” in the 1910s, was first used on tobacco pouches and boots. By the 1920s and 1930s, it gained popularity in children’s clothing and men’s trousers.