LifeFossil DNA has clues to surviving rapid climate change In the last ice age, organisms adapted fast or died. The stunning find of epigenetic changes to DNA frozen in permafrost may help explain their trick 51¶¯Âþ
LifeSmart Guide to 2012: Humans' chimeric origins The roots of our species are being called into question in ways that challenge the roots of our identity 51¶¯Âþ