Why do humans have an appendix? New research is reshaping our understanding of this overlooked organ and its antiquated role ...

It was the first day of spring break in 1992 in Phoenix, Ariz. 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 ...

You don’t need it – and if it bursts, you need surgery fast. That basic story traces back at least to Charles Darwin, the ...

For skeptics of evolution, vestigial organs are pretty difficult to explain. The human body has inherited numerous adaptations from our ancient ancestors that no longer serve a purpose in our modern ...