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'Should not really exist in these waters': Scientists spot gray whale, thought to be extinct in the Atlantic, off Massachusetts coastScientists spotted a gray whale — believed to be extinct in the Atlantic Ocean — while conducting an aerial survey.
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Male humpback whale seen forcing sex on emaciated, injured male in extremely rare encounterPhotographs taken off Maui, Hawaii, show the first documented case of a male humpback whale sexually penetrating another male, with the latter appearing injured and covered in parasites.
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Critically endangered right whales are shrinking, with drastic consequences for their populationClimate change appears to be causing North Atlantic right whales to get smaller, and it's making them have fewer babies.
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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.
marine-mammals -
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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