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TIL Commercial lobstermen make a v-notch in the tail flippers of egg-bearing female lobsters they encounter while fishing as a means to identify and protect a known breeder in the population from harvest.

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5YVJr Characterized by their large green bodies and beak-like teeth, bumphead parrotfish can be found near the coral reefs of the Indo-Pacific. These large corallivores use their mighty teeth to grind up the hard exterior of coral in search of the small creatures living inside. If you've ever visited a beach in these regions, you've probably relaxed on the sandy remnants of this coral-based diet. In other words, that beach is full of crap! National Geographic grantee Mikayla Wujec fills us in in this episode of Today I Learned.
R7Nxl TIL telling ghost stories around a fire was originally a Christmas Eve tradition. Beginning with Charles Dickens' "A Christmas Carol" it was an annual tradition throughout the Victorian Era and only changed when Halloween became popular in the 1920s.
ywNv TIL that it is rare for a homeschooling parent to socialize with children who do not get along easily with their own child, which can limit their child’s social experiences and make it harder for them to learn things like compromise or conflict resolution.
16a8V TIL in 1969, top composer Louis Andriessen and others disrupted a Dutch Concertgebouw Orchestra concert with nutcrackers and bicycle horns, giving leaflets about the lack of Dutch new music in the orchestra's programming. They did a week in jail but sparked some Dutch music scene change.
aaWJ TIL - A peanut grows underground, but peanuts are not attached to the roots of the plant. Peanut plants flower above ground; a budding ovary grows down to penetrate the soil and produce a peanut.