Watch a blue whale blow water in the video below: The blue whale possesses a small dorsal fin near the rear of its body and pectoral flippers (up to 20 feet long) to aid its maneuvering.

Whale shark with injury to the dorsal fin, likely to be caused by collision with a vessel. Credit: Gonzalo Araujo ...

National Marine Sancuary Foundation photo Using dorsal fin, mouth line and underwater ... Researchers at the Pacific Whale Foundation completed a study using new methods to evaluate the impact ...

The blue whale is the largest animal ever known to have lived on Earth. Blue whales are largest of all baleen whales and are found worldwide. They have a long slender body with a proportionally ...