archive on Instagram: "Sea otters are famous not only for using tools but also for their unique way of swimming. They can float on their backs almost without moving, looking both relaxed and completely at ease. In zoos and aquariums, this calm gliding often becomes the highlight for visitors — watching an otter swim is simply mesmerizing. Their bodies are fully adapted to water: webbed feet work like flippers, and their dense fur traps air to keep them warm. Unlike many marine mammals, they lack