"33 Astonishingly True Facts That Seem Completely Unreal"

Reddit users shared a collection of fascinating and unbelievable facts, including the synchronization of heart rates and movements when people listen to the same story or song, the ability of ribs to grow back if the perichondrium membrane is intact, the Polish and Jewish founders of Häagen-Dazs creating a Danish-sounding name to boost sales, and the invention of the fax machine during a time when samurais and Abraham Lincoln coexisted.