How well can sea otters see, hear, smell and touch?
Sea otters have unusual eyeballs, adapted to see both above and below the water. But they use their sense of touch at least as much as their eyes. Their long whiskers help them detect vibrations in murky waters, and they use their sensitive paws to locate and capture prey under water. They seem to have an acute sense of smell and taste, but we don’t really know how well they hear. They seem to be most sensitive to high-pitched sounds.