Dolphins have got it made!
Divers with slow metabolisms may wish they were
a dolphin. Dolphins have a higher metabolic
rate than humans. This along with breath
holding for long periods of time helps
prevent loss of body heat. Dolphins
are highly efficient in their use of
air. When diving, oxygen is
directed to their hearts,
brains and lungs
by changes in
blood flow.
Dolphin with Pup, Maui
© Gretchen M. Ashton