- Info: the Gray Whale is often found off the coast of Southern California is a dark slate and gray in color and is covered in gray and white patterns. The Gray Whale is characterized by scars all over the body caused by parasites which are shed off in cold water feeding grounds. There are several methods of identifying these whales but the most common is by matching photographs of their dorsal surface and matching the scars and patches caused by the parasites. When the parasites fall off, they often take with them pieces of the Gray Whale’s skin leaving scar tissue. With regard to the size, Gray Whales are fairly large but are not the largest type of whale in Southern California. At birth, Gray Whales can measure from 16 ft (4.9 m) long. Upon maturity, Gray Whales can measure up to 45 ft (14 m) long and can be up to 40 tons. Typically, adult females tend to be slightly larger in size than male Gray Whales. They have two nostrils on top of their head, which can create a distinctive V-shaped blow at the surface in calm wind conditions.