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Millions of mystery holes at the bottom of the North Sea are not what scientists thought they wereHoles in the seafloor off the coast of Germany looked like those associated with methane. They might actually be the work of porpoises looking for eels.
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Eerie photograph captures whales hunted off Greenland lying in their watery graveHaunting image showing two whales with their bones picked clean off the coast of Greenland has won the Underwater Photographer of the Year 2024 competition.
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How do marine mammals sleep underwater?How can animals that need to breathe air manage to sleep underwater?
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Haunting 'mummified dolphin' found on US beach may have been dead for monthsThe highly desiccated remains of a suspected bottlenose dolphin were recently found on a beach in South Carolina after "mummifying" for weeks or even months. One expert believes the animal may have deliberately beached itself.
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Hidden DNA found in blue whales reveals they've been mating with other species — and their hybrid offspringNewly sequenced genomes of blue whales in the Atlantic Ocean contain "unexpectedly high" levels of fin whale DNA, hinting that the two species have been interbreeding much more than previously realized.
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Dolphins are 'literally acting like jerks' by beating up baby manateesBottlenose dolphins have been observed trying to kill Antillean manatee calves, and researchers don't fully understand what's going on.
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Bird flu wipes out over 95% of southern elephant seal pups in 'catastrophic' mass deathOver 17,000 southern elephant seal pups were found dead on Argentina's Valdés Peninsula in a horrific mass die off attributed to the deadly H5N1 avian influenza virus.
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Whale with broken back spotted near Mexico after suspected ship collision will likely dieA humpback whale off Baja California Sur with a deformed spine was likely hit by a ship and the injury will probably be fatal, an expert told Live Science.
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Extremely rare dolphin with thumbs photographed in Greek gulfA dolphin with deformed flippers that look like thumbs was spotted in the Gulf of Corinth in July 2023. It likely acquired what appears to be a genetic defect during development in the womb, experts say.
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