Weddell seals are chirping, whistling and trilling under Antarctica's ice at sound frequencies that are inaudible to humans, according to a research team led by University of Oregon biologists.
Two years of recordings at a live-streaming underwater observatory in McMurdo Sound have captured nine types of tonal ultrasonic seal...
Under Antarctica’s Ice, Weddell Seals Produce Ultrasonic Vocalizations
Eurasia Review
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