Cetacean Society International

Working for whales, dolphins and porpoises worldwide

CSI Photo Gallery

Dusky Dolphin

(Lagenorhynchus obscurus)

Why are these dusky dolphins leaping? It is theorized that these highly acrobatic and gregarious dolphins breach in several ways looking for feeding seabirds, to signal location of fish to other dolphins or to herd fish, or because they have just eaten. Sometimes when one animal starts to leap dozens of times in a row, other dolphins will do the same. (Photo courtesy of Dr. Ingrid N. Visser)