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TIL that the Mississippi river was once five miles wide and whales swam up it from the gulf of Mexico. The remains of these whales have been found in Michigan.

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m1W6P TIL that lobsters communicate by peeing on each other.
OG6ae TIL: Ants invented agriculture 50-60 million years ago, right around the time that the first primates appear in the fossil record. These ants cultivate a domesticated fungus for food in underground greenhouses and tend to it through watering, weeding, and pest/disease control.
wLkMo TIL Sheep smell different after they are sheered and do not recognize each other afterward
w6DY TIL that in 2011 a 6 year old boy was charged with sexual assault and may be forced to register as a sex offender for the rest of his life - because he played “doctor” with a 5 year old girl.
rRnJx TIL citizens of the Dutch city Zwolle are colloquially known as Bluefingers due to the 1682 sale of the town church's bells to the town of Kampen. After finding the bells too damaged for use, Kampen paid Zwolle entirely in pennies; fingers in Zwolle turned blue after counting so much change.