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.

This is my 26th summer whale-watching here, and we’ve never seen or heard of there being a blue whale sighting in our area, ever,” said Shawna Prince, who runs whale-watching tour agency Sea of Whales ...

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

Contrary to popular belief, fin collapse doesn't just affect captive whales. Biologists think there are several reasons for the phenomenon. Following is a transcript of the video. Contrary to ...