Page 163 - Design in Nature

run the risk of getting bent.
Nevertheless, this leads to the real question: if they do not
have any air in their lungs how do they not suffocate due to lack
of oxygen?
The answer to this question lies with the “myoglobin”
protein that is found in their muscle tissue in high proportions.
The myoglobin proteins have a high affinity for oxygen, so the
oxygen necessary for the creature is not stored in the lungs but
directly in the muscles. Dolphins and whales can swim without
breathing for extended periods, and can dive as deep as they like.
Humans also have myoglobin protein, but it cannot sustain the
same conditions due to its much smaller volume. This biochemical
adjustment unique to dolphins and whales is, of course, evidence
of deliberate design. Allah created sea mammals, like the rest of
the animals, with body structures best fitted to the conditions in
which they live.