Help Trace the Fossil Paleontologist track down the T-Rex and bring it back to the Dino Valley sanctuary for study! Trace is an expert in dinosaur traits and history and his work helps others learn how to co-exist with the towering behemoths. He’ll just have to be careful because the Tyrannosaurus was the biggest carnivore to walk the earth! Both the dinosaur and action figure have movable joints, and there’s a capture collar included that snaps open and shut when you press the button.