› added 4 years ago

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TIL that firstborn children outperform their younger siblings on cognitive tests

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via reddit.com

LklLm TIL about hedonic adaptation, which is the tendency for people to return to a baseline happiness level regardless of what happens to them. A study conducted on lottery winners and paraplegics concluded that neither group was either happier or sadder less than 6 months after the event.
78BMM TIL about the "Phantom of Heilbronn," a mysterious female serial killer suspect who baffled German police for years, until it turned out the DNA evidence was contaminated by factory workers making the cotton swabs used in forensic tests.
neOnd TIL about Langer's lines. Also known in surgery as skin tension lines. These are considered to reduce scars
R7Dv7 [TIL] Some spiders are master recyclers. Orb-weavers remove their webs every morning by eating the silk. This way, protein from the silk is never wasted. They hide from predators all day and make a new web at night. I saw this myself this morning at on my balcony!
mxpkO TIL Despite Genghis Khan's reputation as a genocidal ruler, he was very tolerant of the religions of his subjects, consulting with various religious leaders. He also exempted Daoists, Buddhists, Christians and Muslims from tax duties.