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TIL that The Vidocq Society - a group of amateur detectives inspired by the real life Sherlock Holmes - investigate and often solve exceedingly difficult cases.

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EJVX TIL the earliest known reference to Christ refers to him as a magician.
7rOoP TIL it was first assumed that the sharks in the freshwater Lake Nicaragua were an endemic species, but it was later observed that the sharks were able to jump up and down the rapids of the freshwater San Juan River (which connects Lake Nicaragua and the Caribbean Sea) like salmon.
evLJ TIL that fetuses of the giant panda have been grown in the womb of a cat by inserting both panda and cat embryos into the cat womb. The panda embryos were crafted by inserting nuclei from panda cells into rabbit egg cells. The cat mother died of pneumonia before completed term.
5YVAn Hot enough to boil oceans and vaporize rock. The highest terrestrial temperatures occurred more than four billion years ago, when a Mars-size proto-planet smashed into the Earth. (The debris from this collision formed our moon.) Within a millennium, the surface air temperature had dropped from a high of about 3,700°F down to 3,000°. Then the planet went into a period of slower cooling that lasted a few tens of millions of years.
VBOwp TIL Diatomaceous earth is made from the fossilized remains of tiny, aquatic organisms called diatoms. It is used in pest control to kill insects like bedbugs by absorbing the oils and fats from the insect's exoskeleton