...: Evolved changes in hemoglobin–oxygen affinity in high-altitude birds and mammals provide striking examples of convergent biochemical adaptation. Biochemical adaptation Blood oxygen transport Hemoglobin High-altitude adaptation Hypoxia Physiological adaptation An adaptive trend...

...) the impact of catecholamine release on gill ventilation and blood oxygen transport. This comparison was undertaken to test the hypothesis that the pattern and consequences of catecholamine release differ in the two species according to the presence or absence of a Root effect and a red blood cell (rbc) β...