Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's oceans — from the warmest of tropical seas to the deep, dark
reaches around hydrothermal vents.
The unusual changes in currents may help explain how the larvae of the heat - loving creatures living
around hydrothermal vents are dispersed through long stretches of near - freezing waters to
reach other warm havens, says Adams.