Birds, bats leave different wakes | Science News



Support credible science journalism.

Subscribe to Science News today.


Birds, bats leave different wakes

Analysis of wind-tunnel data provides details about the creatures’ aerodynamics

9:38pm, March 24, 2009

The aerodynamic wake left behind a bird in flight is fundamentally different from the atmospheric disturbance produced by a bat, new lab tests suggest. In large part, the disparity stems from the flapping techniques the creatures use as they power their way through the air.

Birds and bats evolved self-powered flight independently, says Anders Hedenström, a biomechanicist at Lund University in Sweden. How is still a mystery: Paleontologists haven’t yet discovered the transitional fossils that represent protobat

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content