Learning about the firstanimals on Earth from life at the poles BAS_News
suggest an earlier origin, up to 850 million years ago. If correct, this means that animals must have survived during a time influenced by multiple global ice ages, when the whole or large parts of the planet were encased in ice , far bigger than any seen since. If animal life did arise before or during these extreme glacial periods, it would have faced conditions like modern marine habitats found in Antarctica and the Arctic today, and required similar survival strategies.
Marine biologist and lead author Dr. Huw Griffiths of British Antarctic Survey says,"This work highlights how some animals in theare incredibly adapted to life in and around the ice, and how much they can teach us about the evolution and survival of life in the past or even on other planets.
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