Groundbreaking discovery in East China's Fujian province reveals the oldest confirmed bird fossil from the Jurassic period.

The bird has a short tail ending in a pygostyle, an important aerodynamic innovation moving the center of mass forward toward the wings.

Two studies published in the latest issue of Science, led by Dr. Fernando García-Moreno, Ikerbasque researcher at the Achucarro Basque Center for Neuroscience and the University of the Basque Country ...