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For the first time, scientists have identified the necessary requirements for life in a specific earthly environment. The mud volcanoes at Isua, in south-west Greenland, may have been where life first began on Earth some 3.8 billion years ago, say an international team of geologists. According to the scientists, the mineral serpentinite, which is often found in the walls of hydrothermal sources like ocen ridges and is plentiful in the area of Greenland they examined "could play a major role in the appearance of the first biomolecules." ...MORE