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TIL dogs are red-green color blind and 20/75 vision

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N7NRE TIL Most cyclists can achieve 10-12 mph average very quickly with limited training and Tour de France riders achieve 25 miles per hour over 125 miles, but many cyclists never get to an average over 13-15 mph
78npb TIL the life expectancy of people with down syndrome has risen from 25 years old in 1983 to 60 years old today.
9wgEX TIL that the Imperial House of Japan is the oldest continuous hereditary monarchy in the world, having been traditionally founded in 660 BC, while the oldest historically-attested evidence of the dynasty dates to 539 AD, which was the start of Emperor Kinmei, who was the 29th Emperor to rule.
7rZ6b TIL about Rachel Carson, author of Silent Spring (1962). The book accused the chemical industry of spreading disinformation on the harmful effects of pesticides. The book is credited with inspiring the environmental movement, leading to the formation of the U.S Environmental Protection Agency
7Wv7 TIL termites may produce up to two litres of hydrogen from digesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.