Cetacean Society International

Working for whales, dolphins and porpoises worldwide

CSI Photo Gallery

Spinner Dolphin

(Stenella longirostris)

Spinner Dolphins are the most acrobatic of all cetaceans, often hurling themselves up to 9 1/2 feet in the air, and twisting and spinning their body up to 7 times in a single leap. These Long-Snouted Spinners are easy to identify by the long, slender beak, the erect dorsal fin and high, spinning leaps, although there are many varieties that differ in body shape, size and color. Unfortunately, many of these dolphins are killed when they get caught up in tuna purse-seine nets. Can you help people figure out why dolphins and tuna associate? (Photo courtesy of Dr. Ingrid N. Visser)