Neanderthal genes may explain why some people have Chiari malformation type I, a condition in which the brain bulges out of the back of the skull.

All the Important New iOS 26 Features, From Liquid Glass to Photos App Fixes Your iPhone will look different and get new features when iOS 26 ships in the fall.

A side-by-side comparison of the brains of a horseshoe crab (left), the Mollisonia fossil (center) and a modern spider (right) reveal the surprising findings of this study: The organization of ...