Contact: Wendy Lawton
Wendy_Lawton@brown.edu
401-863-1862
Brown University

Linchpin of Flight

Caption: Using computer modeling, treadmills and the fossil record, researchers have shown that the acrocoracohumeral ligament (AHL), a short band of tissue that connects the humerus to the shoulder joint in birds, was a critical element in the evolution of flight.

Credit: David Baier/Brown University

Usage Restrictions: Must credit David Baier and Brown University

Related news release: Shoulder ligament a linchpin in the evolution of flight