On this day in 1990, fossil hunter Susan Hendrickson discovers three huge bones jutting out of a cliff near Faith, South Dakota. They turn out to be part of the largest-ever Tyrannosaurus rex skeleton ever discovered, a 65 million-year-old specimen dubbed Sue, after its discoverer.
Interesting and/or little-known facts about Sue, the world's largest and most complete Tyrannosaurus rex skeleton ever discovered. She has been on display since 2000 in Chicago's Field Museum, since 1893 the city's showcase and storehouse of mummies and other anthropological souvenirs, plus fossils and preserved plants and animals. The museum, with support from academic, business and philanthropic institutions, purchased the bones at auction in 1997.