Reaching speeds of up to 68 miles per hour, it uses its long, slender body and retractable sail-like dorsal fin to cut through the water ... making it one of the fastest dog breeds known to man. Mako ...

A flash of orange on a speeding shark left researchers speechless during a routine expedition. What looked like an injury turned out to be something far stranger.

Greater amberjack (Seriola dumerili) have a dark strip from the nose to the front of the dorsal fin. The largest of the amberjacks grow ... There is a recreational limit of one shark per person or two ...