Captive whales don't have enough space to reach these speeds. Ultimately, the curved dorsal fin is still a mystery. Curved, or not, the orca's giant fin is a beacon to all, this apex predator is a ...

North Atlantic right whales have stocky black bodies, no dorsal fin, short pectoral fins and v-shaped blow holes. Their tails are wide with deep notches and their bellies are black with irregular ...

At birth, beluga whales are 5 feet long, roughly 100 pounds, and dark blue-gray in color. Unmistakable as adults, their color lightens to white, and they have a dorsal ridge rather than a fin. Belugas ...