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  • green sea turtle
  • coral reef
  • Larsen C ice shelf break
Your search has returned 208 articles:
  • News in Brief

    Warming ocean water is turning 99 percent of these sea turtles female

    Warming waters are turning some sea turtle populations female — to the extreme. More than 99 percent of young green turtles born on beaches along the northern Great Barrier Reef are female, researchers report January 8 in Current Biology. If that imbalance in sex continues, the overall population could shrink.

    Green sea turtle embryos develop as male or female depending on the...

    01/08/2018 - 19:30 Climate, Animals, Oceans
  • News in Brief

    Corals are severely bleaching five times as often as in 1980

    Corals are in hot water.

    Severe bleaching events are hitting coral reefs five times as often as in 1980, researchers report in the Jan. 5 Science.

    Scientists surveyed 100 coral reef locations in tropical zones around the world, tracking each spot’s fate from 1980 to 2016. At first, only a few of the locations had experienced bleaching. But by 2016, all had been hit by at...

    01/04/2018 - 14:00 Oceans, Climate, Animals
  • Year in Review

    The Larsen C ice shelf break has sparked groundbreaking research

    In 2015, glaciologist Daniela Jansen reported that a large rift was rapidly growing across one of the Antarctic Peninsula’s ice shelves, known as Larsen C. When the shelf broke, she and colleagues predicted, it would be the largest calving event in decades.

    It was. In July, a Delaware-sized iceberg split off from Larsen C  (SN: 8/5/17, p. 6). And researchers knew practically the...

    12/13/2017 - 08:30 Climate, Ecosystems, Oceans
  • News in Brief

    Watching this newborn island erode could tell us a lot about Mars

    NEW ORLEANS — Earth’s youngest bit of land is getting a new lease on life. When an erupting volcano birthed an island in the Pacific Ocean in late 2014, scientists thought waves would erode the island away within just a few months. Instead, new data suggest it could stick around for up to 30 years, researchers reported December 11 at a news conference at the American Geophysical Union’s fall...

    12/11/2017 - 17:48 Earth, Oceans, Planetary Science
  • News

    Narwhals react to certain dangers in a really strange way

    View the video

    When escaping from humans, narwhals don’t just freeze or flee. They do both.

    These deep-diving marine mammals have similar physiological responses to those of an animal frozen in fear: Their heart rate, breathing and metabolism slow, mimicking a “deer in the headlights” reaction. But narwhals (Monodon monoceros) take this freeze response to extremes. The animals...

    12/07/2017 - 14:41 Animals, Oceans, Physiology
  • News

    Most blue whales are ‘righties,’ except for this one move

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    Blue whales, it turns out, are a tad ambidextrous.

    When hunting in deep water, the whales tend to be “right-handed,” lunging at krill while twisting 180 degrees or less onto their right side. But when gobbling up the tiny crustaceans near the surface, the whales tend to be lefties, launching themselves upward while performing a 360-degree barrel roll to the left,...

    11/28/2017 - 14:00 Animals, Oceans, Ecology
  • News in Brief

    In the deep ocean, these bacteria play a key role in trapping carbon

    A mysterious group of microbes may be controlling the fate of carbon in the dark depths of the world’s oceans.

    Nitrospinae bacteria, which use the nitrogen compound nitrite to “fix” inorganic carbon dioxide into sugars and other compounds for food and reproduction, are responsible for 15 to 45 percent of such carbon fixation in the western North Atlantic Ocean, researchers report in the...

    11/28/2017 - 11:00 Oceans, Climate, Microbes
  • Reviews & Previews

    Climate foiled Europeans’ early exploration of North America

    A Cold WelcomeSam WhiteHarvard Univ., $29.95

    Many people may be fuzzy on the details of North America’s colonial history between Columbus’ arrival in 1492 and the Pilgrims’ landing on Plymouth Rock in 1620. But Europeans were actively attempting to colonize North America from the early 16th century onward, even though few colonies survived.

    As historian Sam White explains in A...

    11/25/2017 - 08:00 Climate, History of Science, Oceans
  • News

    Wind may be driving the melting of East Antarctica’s largest glacier

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    The wind is helping to awaken one of Antarctica’s sleeping giants. Warm ocean waters, driven inland by winds, are undercutting an ice shelf that holds back a vast glacier from sliding into the ocean, researchers report November 1 in Science Advances.

    Totten Glacier is East Antarctica’s largest glacier, with a drainage basin encompassing about 550,000 square...

    11/01/2017 - 14:24 Earth, Climate, Oceans
  • Reviews & Previews

    Here’s the real story on jellyfish taking over the world

    SpinelessJuli BerwaldRiverhead Books, $27

    Jellyfish have gotten a bad rap. In recent years, concerns about rising jellyfish populations in some parts of the world have mushroomed into headlines like “Meet your new jellyfish overlords.” These floating menaces are taking over the world’s oceans thanks to climate change and ocean acidification, the thinking goes, and soon waters...

    10/30/2017 - 12:18 Animals, Ecology, Oceans