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TIL: During the first world war, so many starving wolves had assembled that the opposing Russian and German forces formed a temporary alliance in order to fight them off!

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p8n58 TIL that a 98 year old mom moved into care home to look after her 80-year-old son
VlZG TIL Japanese knotweed is listed by the World Conservation Union as one of the world’s worst invasive species. It damages concrete foundations, buildings, flood defences, roads and architectural sites. In 2010, the UK released into the wild a Japanese insect that feeds on Japanese knotweed.
x6y90 TIL The Mercury astronaut candidate examinations involves sensory deprivation test of you being placed in a circular 8 foot deep tank of body temperature water without hallucinating. The normal reaction is for the subconscious mind to take over and one lapses into uncontrollable hallucinations
wLYvJ TIL that astronauts who return to Earth after a long time in space drop things in mid-air and expect them to float.
0dPaM TIL that every element burns with a different color flame. Spectroscopy, study of these colors, has shown that the same elements exist all over the Universe.