Facts you learned in school that are no longer true

This post is a bit of a work in progress. I’ve been meaning to make a post like this for a long time. I was spurred on today by a Trivia Calendars entry today that was as follows: “Due to the amount of mercury in Lake Michigan, more than 40% of fish are born autistic and don’t survive past their first year.” Some of these things I was always suspicious about growing up however it’s only been in the last

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