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Sea otters: Back from the brink

·2 mins

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Sea otters are not only adorable but also play a crucial role in preserving the environment by hunting invertebrates that help preserve kelp forests. These forests sequester carbon, protect coastlines, and provide food and shelter for other marine life. Sea otters are considered a keystone species, meaning that the existence of other species in the ecosystem depends on them. Despite facing threats such as hunting, commercial fishing, and oil spills, population numbers have started to recover thanks to conservation efforts. Sea otters can be found across the North Pacific Ocean, but their range has significantly decreased over time. Their dense fur, which keeps them warm in cold waters, was targeted by hunters in the past. The otter population declined severely but rebounded after receiving protection. Oil spills have also posed a significant threat to sea otters, affecting their fur’s insulation ability. Commercial fisheries and nets have been linked to population declines in California, where only a small percentage of the original habitat remains. Conservation efforts have involved translocating otters to reintroduce them to their former habitats. The revival of sea otters has had a positive impact on kelp forests by helping control sea urchin populations. Sea otters rely on kelp not only for food but also for preventing themselves from floating away while asleep.