Joel Sartoreのインスタグラム(joelsartore) - 5月14日 03時09分

A chambered nautilus at the Monterey Bay Aquarium. This mollusk’s shell pattern is specialized to disguise them from predators. When seen from above, the dark stripes help blend the animal into the seabed, and when seen from below, their bright underside blends with the reflecting sun on the water’s surface. To float, the nautilus sends air through a tube to its many shell chambers. They thrust water into and out of their shells, using jet propulsion to swim. .
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