› added 10 years ago

73

TIL That citizens of the Commonwealth (Canada, Australia ect.) are allowed to vote in the United Kingdom.

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9olD TIL catnip is 10 times more effective at repelling mosquitoes than DEET, the compound used in most insect repellents.
yVQ4V TIL that a parietal eye, also known as a third eye or pineal eye, is a part of the epithalamus present in some vertebrates. The eye is located at top of the head, is photoreceptive and is associated with the pineal gland, regulating circadian rhythmicity and hormone production for thermoregulation.
By8W TIL Leonardo da Vinci may have written backwards not for secrecy, but because he is left handed and it was easier for him to do.
vYXB TIL Some dinosaurs had a possible lifespan of 300 years due to their slow metabolisms
gMWkA TIL that 12,000 bears are farmed for their bile in Asia which is used in traditional Chinese medicine and generates $2bn per year. Farming always involves surgery on the bears to insert a catheter or to cut a hole through the abdomen by which the bile leaks. Bear bile has no medicinal effect.