Marisa is an assistant editor at Discover. She received her master’s degree in health, environment & science reporting from Northwestern University’s Medill School of Journalism. In a previous life, ...

The human appendix is a small, muscular, vermiform or worm-shaped organ, averaging around 9cm in length, that is located at the junction of the small and large intestine. 1 According to comparative ...

It was the first day of spring break in 1992 in Phoenix, and 12-year-old Heather Smith was excited for her family's upcoming ski trip. But before Smith and her family had even packed their snow pants, ...