New Recordings of Ultrasonic Seal Calls Hint at Sonar-Like Abilities

EcoWatch
By The ConversationFeb 9, 2021, 11:26 am147 pts
By Lisa Munger I'm sitting on the edge of a hole drilled through 15 feet of Antarctic sea ice, about to descend into the frigid ocean of the southernmost dive site in the world. I wear nearly 100 pounds of gear – a drysuit and gloves, multiple layers of insulation, scuba tank and regulators, lights,…

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