› added 5 years ago

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TIL That cheetahs cannot roar, they can only purr like a housecat! (cute video links of this in comments)

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E1Vbp TIL of a new type of traffic intersection that has been shown to prevent traffic accidents and decrease traffic congestion called the diverging diamond exchange
9Y1pQ TIL that earwigs have wings.
W7jE4 TIL Ford Motor Company made experimental helmets for soldiers in WW1. The Model No. 8 helmet made between 1917 and 1918 weight 3 lbs and looked like a knight helmet.
7roL TIL the German GSG9 counter-terrorist force has completed over 1,500 missions and yet only discharged a weapon five times.
7r5YL TIL that the most successful hunter in the animal kingdom is the dragon fly which catches 95% of the prey it pursues (compared to owls, hawks, and falcons 25% success rate). This is due to an impressive suite of evolved adaptations that have remained largely unchanged since the Permian age.