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The Covid-19 pandemic left the oceans quieter than ever in 2020, allowing scientists to analyze the effect human-generated sound has on marine life. This map from the IQOE-endorsed JOMOPANS project shows the difference between the total noise level and the natural noise level with differences up to 30 decibels (dB). While 30 dB on its own is not loud, the superimposition raises the level significantly higher than natural noise. (Credit: JOMOPANS) (CN) — A unique new study has taken advantage of the momentary pause in human activity in the ocean during the Covid-19 pandemic, as scientists ar...

International Project Will See How the Quiet of Covid-19 Affected the Oceans Share An orca chases herrings on Jan. 14, 2019 near the Norwegian northern city of Tromso. (Photo: Olivier Morin, Getty Images) To sign up for our daily newsletter covering the latest news, features and reviews, head HERE. For a running feed of all our stories, follow us on Twitter HERE. Or you can bookmark the Gizmodo Australia homepage to visit whenever you need a news fix. Between offshore oil and gas drilling, shipping, wind turbines, and even jet skis, the ocean is a pretty loud place. But amid covid-19, a lot o...

Close Antarctica is often perceived as nothing more than a lifeless barren of cold. A frozen dessert. However, not many are aware of the booming and flourishing population of Weddel seals that dominated the waters of the frozen south. There, they create a soundscape that a lot of creatures, especially humans, are unaware of. (Photo : Vassil Tzvetano on Wikimedia Commons) These pinnipeds typically emit high-pitched pings that sound like laser guns in a science-fiction movie. But that is not their entire repertoire. Research reveals that a significant portion of their calls is at ultrasonic fre...

Print Weddell seals use a breathing hole in the frozen surface of the Ross Sea. Credit: Alasdair Turner Advertisement Above the frozen ocean, Antarctica can be eerily quiet. Gusts of wind are often all one hears. Below, though, the Southern Ocean is a living soundscape dominated by Weddell seals. These pinnipeds typically emit high-pitched pings that sound like laser guns in a science-fiction movie. But that is not their entire repertoire. Research now reveals that a significant portion of their calls are at ultrasonic frequencies, high pitches well beyond the 20-kilohertz limit of most huma...

Dolphin man: For 50 years, biologist has studied bottlenose dolphins from a research center on Florida’s Gulf Coast Steve Johnson, Chicago Tribune © TNS A resident Sarasota Bay dolphin leaping with suction-cup-mounted DTAG that records sounds and behavior for up to 24 hours. CHICAGO – Beginning his work in marine biology, Randy Wells thought he was a shark guy. But the teenager whose family had just moved from Peoria to Florida’s Gulf Coast volunteered to help a local researcher study the migration patterns of the bottlenose dolphins off of Sarasota. And now it’s 50...