Within 30 seconds, the dolphin surfaced to report that it had detected a training mine. Woods then sent the dolphin back underwater to verify its discovery. In an instant, the dolphin reappeared to confirm its find, and Woods gave it a marking device. The dolphin used its snout to carry the device down to the object. After the dolphin placed the marker near – but not on – the training mine, a portion of the marker device floated to the surface to reveal its location. Immediately afterward, divers aboard a different boat swam to the sea floor underneath the marker float to evaluate the dolphin’s work. The divers returned to the surface with a thumbs-up, signaling a correct identification and accurate marker placement. Woods immediately rewarded the dolphin with verbal praise and fish.