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TIL camel and goat eyes are ovals to better control light input and are horizontal for a 'panoramic view' that blocks light from above and below. Cats and predators are vertical slits for judging distance without moving the head. Cats eyes alone have ~9x more control over light than humans.

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j6Mgn TIL that the ancient Mayan city of Caracol in modern-day Belize was founded in 1200 BCE, held more than double the population of the largest current day city in Belize (of 61,461), and the one of its temples, Caana, built ~9th century CE, is still the tallest building in the country today.
XE0LD TIL about the China National Highway 110 traffic jam; a massive traffic jam that slowed down thousands of vehicles for more than 100 km and lasted for more than 10 days. Drivers were able to move their vehicles only 1 km per day and some drivers were stuck in the traffic jam for 5 days.
4kbbg TIL Confederate General Earl Van Dorn, known as a handsome, debonair womanizer, was fatally shot on May 7, 1863, by Dr. George B. Peters, who accused him of having an affair with his wife, Jessie. Despite being arrested, Dr. Peters was never tried, claiming he acted to defend his family’s honor.
d8y1E TIL a study led by John Pachankis has found gay and bisexual men experience more stress from dating than their straight counterparts.
D1r8g TIL a frozen zoo is a storage facility in which genetic materials taken from animals are stored at very low temperatures. Material preserved in this way can be stored indefinitely and used for artificial insemination, in vitro fertilisation, embryo transfer, and cloning.