Portal:Cetaceans/Selected Picture/July, 2007

Photo credit: Cornelia Oedekoven Many whales are known to breach the waters surface. The act of leaping generates more power than any other act performed by a non-human animal.

Some whales, such as Sperm Whales, perform a breach by travelling vertically upwards from depth, and heading straight out of the water. Others, such as the Humpback Whale (pictured), travel close to the surface and parallel to it, and then jerk upwards at full speed to perform a breach. In a typical breach, as performed by a Humpback or Right Whale, the whale clears the water at an angle of about 30° to the horizontal.

More on whale behaviour