Sunday, February 27, 2011
While arsenic is not terribly different from phosphorous on a chemical level, many scientist believed that even very subtle changes in the chemistry of DNA would be disastrous. This discovery is the first of its kind, and opens up the possibility that life can thrive in a much wider variety of conditions than previously believed. Therefore, it may not be as much a question of what kinds of environments life can adapt to, but more simply what kinds of environments life has the opportunity to evolve in. It could be that, given enough time and a gradual enough transition, life can adapt to nearly any environment.