"New research finds that hummingbird species living at high altitudes have independently evolved hemoglobin with enhanced oxygen-binding properties so they can thrive in oxygen-poor environments."

#SciComm by @GrrlScientist

#birds #ecology #physiology #evolution https://grrlscientist.medium.com/how-hummingbirds-live-at-high-altitudes-69b4761069b1