Atlantic bottlenose dolphins have a light to slate gray dorsal surface, fading to lighter gray on their sides with a pale gray or pink belly.
The dorsal fin is tall and curves toward the rear of the animal. The fluke, or tail fin, is curved with a deep notch in the middle, and the pectoral, or side, fins are medium length and pointed.
These dolphins have robust bodies and are named “bottlenose” after their short, stubby rostrums, or beaks. Bottlenose dolphins have 86 to 100 sharp, cone-shaped teeth which help to catch slippery prey.