Do All Humpback Whales Have Long Flippers?
Do All Humpback Whales Have Long Flippers? Humpbacks can grow to 60 feet (18 meters) long, and they can weigh a whopping 40 tons (about half the size of a blue whale), according to the NOAA. Their flippers can grow up to 16 feet (5 m) long, which is the largest appendage in the world.