Young Sads have a hard shell, but grow into streamlined aquatic creatures as they learn to navigate the depths of the sea. Their dolphin-like skin allows them to swim with ease, and they can stay underwater for days at a time. Sads tend to gaze downwards by virtue of their neck structure, and thus often suffer from early-onset myopia. To protect your Sad's eyes, remember to teach it to look at the sky once in awhile (Doesn't speak)