"It's not just a fluke," University of Colorado Boulder doctoral researcher Simon Pendleton, lead author of the study, told CNN. "These ancient landscapes are being covered in a broad geographic region of Baffin Island."
48 mosses and lichens – still rooted in the spots where they were killed by expanding ice millennia ago – from the edges of 30 retreating ice caps on Canada's Baffin Island during summers from 2010 to 2015.
40,000 years, said University of Colorado Boulder doctoral researcher Simon Pendleton, lead author of the study.
The plants were found in the Penny Ice Cap area of the island, in elevations ranging from several hundred meters to a mile above sea level.