A study of octopus DNA has revealed that an Antarctic ice sheet likely collapsed 120,000 years ago at similar temperatures to today, scientists have said. Australian and New Zealand scientists compared the genetic profiles of Turquet’s octopus found in the Weddell, Amundsen and Ross seas in the Southern Ocean in Antarctica and found genetic connectivity dating back to the last interglacial – a period between 130,000 and 115,000 years ago characterized by a climate warmer than today, with a higher global sea level and smaller ice-sheets. According to the study, published in the journal Science …