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Working in Arctic frequently requires living in isolated tent camps up to 300 miles away from any supply base , so doing research there happily leads not only to novel scientific discoveries but to adventures as well . Typically , in all non-bacterial and non-viral organisms , introns evolve much faster than exons because mutations to introns have little functional significance . My fieldwork and research in the Arctic focus on molluscan faunas of the Cenozoic Era , the last 65 million years of geological time . From the present location of the non endemic snails ( excluding recent introductions ) we may have a clue to their ancestry . Please let us know how we may be of further assistance .