Giant Crocodile
These creatures are far rarer than their smaller cousins. They attain sizes from 21 to 30 feet long, and they also continue to grow until death. Giant crocodiles typically inhabit salt water or prehistoric settings, where they have been know to prey upon sharks, small whales, and small seagoing crafts, such as fishing boats. When attacking a small boat, their favorite technique is to ram it, attempting to capsize and smash it open with their huge jaws. They have been known to gorge upon the catch within the fishing boats, and then to swim away, leaving the fishermen unharmed.