How do birds fly in a coordinated and seemingly effortless fashion? Part of the answer lies in precise, and previously unknown, aerodynamic interactions, reports a team of mathematicians. Its ...

From their feathers to feet, learn more about the major features of bird anatomy and what makes these fascinating animals so ...

A live recording of the experimental apparatus in operation. Five foils are driven to flap up and down in unison, and they freely and interactively propel around a water tank. In looking up at the sky ...