title: Efficient fish not faint-hearted.
authors.forename: E
authors.initials: E
authors.lastname: Brainerd
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D001775:Blood Circulation / Q000502:physiology; D003326:Coronary Circulation / Q000502:physiology*; D005399:Fishes / Q000033:anatomy & histology*; D005880:Gills / Q000098:blood supply*; D006321:Heart / Q000502:physiology; D006331:Heart Diseases / Q000628:therapy; D008168:Lung / Q000502:physiology; D010100:Oxygen / Q000097:blood; D011652:Pulmonary Circulation / Q000502:physiology*
chemical_list: D010100:Oxygen