Today is the anniversary of the death of Genghis Khan: founder of Mongolian Empire, prolific spreader of DNA, and climate change hero.
Eric Clapton Goes Fishing and Lands the Biggest Salmon of the Summer.
Is it Better to Walk or Run in the Rain?
ICYMI, Wednesday's links are here, and include what happens when your Roomba runs over dog poop, what happened in the seconds, hours and weeks after the dinosaur-killing asteroid, Schrödinger's cat explanation, jokes, and videos, and a brief history of athletes drinking their own urine. and a visual history of the human pyramid.