Natural-born Divers And The Molecular Traces Of Evolution
Monday, June 29, 2009 - 09:21
in Biology & Nature
When the ancestors of present marine mammals returned to the oceans, their physiology had to adapt radically. Scientists have been studying how myoglobin, the molecule responsible for delivering oxygen to the muscles during locomotion, has been modified in seals and whales to help them cope with the needs of a life at sea.