In this August 1965 photo, diver John Reaves of Sealab II rewards Tuffy, a porpoise, with a fish as they train in the ocean off Point Mugu, California. Divers worked with Tuffy to experiment with ways porpoises can assist people underwater.
This and other photographs and artwork are available as prints through the Naval Institute Photo Archive. Contact us at 1-800-233-8764, [email protected], or visit our website, www.usni.org.