WINSTON-SALEM, N.C., April 12 (UPI) -- Scientists have discovered a special muscle in two tropical bird species that allows them to move their wings at tremendous speeds. The "superfast" muscles and the movements they enable are key to courtship for male red-capped and golden-crowned manakins.
In addition to offering insights into the evolution of tropical birds, the discovery may enable scientists to uncover the physiological secrets of stronger, faster muscles.