PNAS study: Extreme-altitude birds evolved same trait via different mutations

PNAS study: Extreme-altitude birds evolved same trait via different mutations 02/21/2018 02:20 PM EST All extreme-altitude birds have evolved especially efficient systems for delivering scarce oxygen to their tissues. But a new study led by the University of Nebraska-Lincoln has found that these birds often evolved different blueprints for assembling the proteins -- hemoglobins -- that actually capture oxygen in the Himalayas and Andes. Full story at https://news.unl.edu/newsrooms/today/article/study-high-altitude-birds-evolve-similar-traits-via-different-mutations/ Source University of Nebraska-Lincoln This is an NSF News From the Field item. Follow NSF:  This email was sent using GovDelivery Communications Cloud on behalf of: National Science Foundation Update · 2415 Eisenhower Avenue, Alexandria, VA 22314 · 703-292-5111