How whales breathe is a subject which has interested Scientist Alec H. Laurie of London. Aboard a floating whale oil factory off South Georgia, Antarctica, he sampled and studied the lungs and blood of scores of fresh-killed blue whales. He has reported his findings to Nature. Since whales are air-breathing mammals, Scientist Laurie expected to find, in the blood of whales fresh-killed and captured after diving deep, large quantities of dissolved nitrogen, forced into the blood by submarine pressure. Such was not the case. In most samples there was even less nitrogen than...
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