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TIL the Nile crocodile is estimated to kill hundreds of people each year which is more than all other crocodilian species combined & since a majority of fatal attacks are believed to be predatory in nature, the Nile crocodile can be considered the most prolific predator of humans among wild animals.

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lnv5 TIL that a group of scientists used mouse skin cells to create stem cells and then used these stem cells to create mouse eggs. These eggs were then fertilized and produced healthy baby offspring. These latter mice were able to have their own babies.
JYlv4 TIL Canada officially became a multicultural society in 1971 when the government began to recognize the value and dignity of Canadians of all races and ethnic groups, all languages and all religions
NAjQ TIL A decade before the SR-71 first flew, the Military had a Mach 4.3 capable Ramjet created to test its own air defenses. It was so effective, it was cancelled to avoid embarrassing the military’s own air defenses any further. The man who designed it went on to create the SR-71 spyplane.
4X0eJ TIL that the world's oldest postcard called "Penny Penates" was intended as a practical joke on post office clerks.
oR7bA TIL that Charles Joughin, Chief Baker on the Titanic, helped passengers board lifeboats and was “boozed up”, which allowed him to withstand the frigid temperatures. He threw chairs overboard to use as flotation devices, and some say he was the last to enter the water, where he survived for 2 hours.