Flapping Before Flight (VIDEO) American Museum of Natural History This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption This x-ray reconstruction of moving morphology (XROMM) video shows Chukar partridges of a variety of ages as they flap their wings to help climb steep slopes -- a behavior scientists call wing-assisted incline running (WAIR). Credit © Ashley Heers/Brown University XROMM Facility Usage Restrictions Can be used with appropriate credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.