Clue to rising sea levels lies in DNA of 4m-year-old octopus, scientists say

Genes of Turquet's octopus hold memories of melting of previous Antarctic ice sheet, raising fears of what another thawing could bringFollow our Australia news live blog for the latest updatesGet our morning and afternoon news emails, free app or daily news podcastDeep in the DNA of an Antarctic octopus, scientists may have uncovered a major clue about the future fate of the continent's ice sheet - raising fears global heating could soon set off runaway melting.Climate scientists have been struggling to work out if the ice sheet collapsed completely during the most recent "interglacial" period about 125,000 years ago, when global temperatures were similar to today.Sign up for a weekly email featuring our best reads Continue reading...