Sascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe.
A strange series of mass deaths among gray whales in the northeastern Pacific Ocean may finally have an explanation, with scientists linking Arctic sea ice levels to the major die-off events.
The latest die-off began in 2019 and saw more than 70 gray whales wash up dead in just six months. It is ongoing and — as of Sept. 26, 2023 — a total of 688 whales have died. What caused each of the events was unclear. But changing conditions and fluctuating sea ice levels in the Arctic may better explain what the National Oceanic and Atmospheric Administration termed"unusual mortality events," according to the new study, published Oct. 12 in the journal Science.
Gray whales quickly rebounded from the first two mortality events. But the most recent die-off is ongoing since 2019 and has cast us into"uncharted territory," Stewart said.
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AI just spotted its 1st supernova. Could it replace human explosion hunters?Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
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