A tiny octopus; a big question; DNA ties them together.
Quote of the first two paragraphs: " A study of octopus DNA may have solved an enduring mystery about when the rapidly melting West Antarctic ice sheet last collapsed, unlocking valuable information about how much future sea levels may rise in a warming climate.
“The innovative research focused on the genetic history of the Turquet’s octopus (Pareledone turqueti), which lives on the seafloor across the Antarctic, and what it could reveal about the geology of the region over time.”
There’s quite a bit more in the CNN story. Also pix of a truly cute critter.