A rare video shows the mating ritual of hooded seals in the Arctic Ocean. In the video, a young male hooded seal appears bobbing along a slab of ice, where a female is nursing a pup. A male hooded seal is shown in an illustration. More than 600,000 hooded seals live across the North Atlantic and Arctic Ocean, per the National Oceanic and Atmospheric Administration (NOAA) fisheries. Hooded seal pups are weaned off the milk in just four days, the shortest time for any mammal.

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