A blue whale spotted off Dana Point on Sunday appears to have been inspired by "Shark Week."
As passengers aboard the Ocean Adventures catamaran watched in amazement, the enormous mammal turned on its side and revealed a towering portion of its tail fluke, which sliced through the water in a manner that made it look similar to the dorsal fin of a large shark.
Viewers of the video can hear the clicking of camera shutters during this unusual event, and one passenger can be heard saying, "He's doing his 'Jaws' impersonation."
Endangered blue whales are the largest creatures on the planet, measuring to about 100 feet and weighing up to 150 tons. About 2,000 of them spend the summer and part of fall off the West Coast, feeding on shrimp-like krill.
Blue whales have been spotted off Dana Point, in Orange County, every day for more than a month. Ocean Adventures runs from Dana Wharf Sportfishing and Whale Watching.