In 1987, Hawaii in the sea as divers diving four people were suddenly they were perplexed when the dolphins came swimming around them. But then they began to understand. Because when one of the dolphins in the group dived white shark. It emerged that they set themselves the dolphins herd was sequences to protect divers and four people more than 30 minutes until they reached the ship's safe. They reward the Dolphins drove by. Join the group Dolphin Conservation Society To help the dolphin was attacked.