⟳ Репост от Catherine Williams
The retina is one of the most energetically expensive tissues known to science. And yet, birds’ retinas manage without a key energy-saving tool: oxygen. New research explores how.
How the Bird Eye Was Pushed to an Evolutionary Extreme | Quanta MagazineThe bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy advantage of oxygen. New research finally explains how this is possible.www.quantamagazine.org