Ultrasaurus Rex

By far the largest land predator of the Lost Jungle, and one of the largest predators ever, Ultrasaurus Rex lives up to its name of "Ultra Lizard-King." The top predator on the island, U. Rex hunts nearly anything and everything. Adult males can be found all across the open lowlands, while adult females usually dwell along the fringes of the jungles. Juveniles, meanwhile, live in packs in the dense jungle interior, avoid the adults (and many large predators), until they grow large enough to hunt on their own.

While large and strong enough to take even the large plant eaters, U. Rex is an opportunistic predator and isn't above taking a kill from another U. Rex, or another predator species entirely. They also aren't above eating carrion, and tend to consume most of a kill, their strong stomach acids capable of digesting most anything, while their powerful jaws could crack even the strongest bones for the rich marrow.

Normally solitary, male U. Rexes will seek out females come mating season, staying with a receptive female for a few days until she sends him away. Adolescents and juveniles tend to steal unguarded kills during this time, while young adults may try to steal an adult's unguarded territory.

Although capable of reaching 25 MPH in a dead run (for short stretches), U. Rex is more of an ambush predator. They lurk near waterholes, trails, and in areas of light forest, where they normally prey on Rukosaurus. They usually use their dark coloration to help hide their appearance, staying in shadowed areas -- such near stands of scrub, cliffs and outcroppings, and ruins. Amazingly stealthy for their size, they are also more flexible than they look, due to the arraignment of their rib cage and hips.

With huge jaws filled with teeth, U. Rex simply bites into most prey to deliver an almost instantaneous killing blow. Small prey (such as man-sized objects) are usually wolfed down hole, while anything larger is torn into chucks -- usually by bracing the body with one three-toed foot.