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TIL mother polar bears nurse their cubs for as long as 30 months. Some cubs stop nursing as young as 18 months of age, but remain with their mothers for survival until they are 30 months old. The average fat content of polar bear milk is 33%, similar to the milkfat content of other marine mammals.

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M0mV TIL when you remember things from a 3rd person view (typically your oldest memories), it’s called an Autobiographical memory
OG01R TIL that Pete Best, original drummer for the Beatles, released an album in 1965 called "Best of the Beatles" that contained no Beatles music, causing him to be investigated for consumer fraud. The case was dropped because no fraud had been committed. He was Best, of the Beatles
Brymr TIL that Elizabeth I spent her reigning summers travelling with an entire royal entourage of 400-600 horse drawn carts. They travelled slowly, an average of 10-12 miles a day. Her visits to houses incurred significant expenses for the host, thus they weren’t always happy to have her stay.
Ooe07 TIL in 1880 a guy built a 200ft 14 storey tower made out of concrete with no steel reinforcement. It’s still standing today, 140 years later, and is the tallest non-reinforced concrete structure in the world. It was designed as his mausoleum.
jAmv TIL a mere 12,000 years ago a species closely related to modern humans had been living on an Indonesian island. They used fire and rather advanced tools, yet were only about 3 feet tall, weighing around 25kg.