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4 never-before-seen octopuses discovered in deep sea off Costa RicaEnigmatic octopuses that have been newly discovered in the waters off Costa Rica add to a growing registry of deep-sea dwellers.
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Crabs keep evolving to go from the sea to the land — and back againTrue crabs evolved to migrate between marine and land environments multiple times throughout their 250 million-year-old history, new study finds.
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More than 10 billion snow crabs starved to death off the coast of Alaska. But why?A large population of snow crabs in the eastern Bering Sea collapsed after a marine heat wave in 2018 and 2019 that multiplied the crabs' caloric needs and drove them to starvation.
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Tiny, highly venomous jellyfish stings 2 people in the middle of the ocean — forcing them to be airlifted to hospitalIrukandji jellyfish, which are around the same size as a dime, have a venom-filled sting that can trigger an extremely painful and occasionally deadly syndrome.
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'Hauntingly beautiful' image of a golden horseshoe crab wins wildlife photography competitionFrench photographer Laurent Ballesta has received this year's Wildlife Photographer of the Year award for his image of a tri-spine horseshoe crab off Pangatalan Island in the Philippines.
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'Parasitic provider of sperm on-tap': Why the sex lives of deep sea creatures demand extreme solutionsFrom the opportunistic "have-a-go" approach of octopuses to "accessory males" that supply female anglerfish with a lifetime of sperm, author Jon Copley explores the sex lives of deep sea creatures.
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Octopus sucker-inspired patch delivers drugs into the body without needles or pillsA new patch, which sticks to the inner lining of the cheek like an octopus sucker, effectively delivered two drugs in dogs and passed safety tests in humans.
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Hoff crab: The hairy-chested crustacean that farms bacteria on its hairsThe "yeti" crab is white and hairy, as its nickname suggests, and it thrives in hydrothermal vents in Antarctica's frigid waters.
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Pom pom crab: The crustacean that uses anemones as boxing glovesThese tiny crustaceans, also known as boxer crabs, use the venomous anenomes to protect themselves from predators and to eat with. They also wave them around while fighting with each other.
