Tag: mutagenesis

Resurrected Woolly Mammoth Protein Proves to Work Well in the Cold

By Douglas Main | September 21, 2011 12:50 pm

Scientists have often wondered how woolly mammoths survived and thrived in the frigid climes of the far north in Earth’s last ice age. The hemoglobin in elephant (and human) blood cannot easily transfer oxygen to other cells in the body at low temperatures. Instead, the blood’s hemoglobin holds onto its oxygen in icy extremities and the tissue eventually dies; that’s the main reason we get frostbite. There must, then, have been something special about mammoth hemoglobin.

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CATEGORIZED UNDER: Living World
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