Bloating, belching and intestinal gas: How to avoid them. Bloating, belching, gas and gas pains can be embarrassing and uncomfortable. Here's what causes these signs and symptoms â and how you can prevent them. Bloating, burping and passing gas are natural and are usually caused by swallowed air or the breakdown of food through digestion.
1 Tyrannosaurus rex was one of the largest meat-eating dinosaurs that ever lived. 2  Everything about this ferocious predator, from its thick, heavy skull to its 4-foot-long (1.2-meter-long) jaw, was designed for maximum bone-crushing action.
By far the largest carnivore in its environment, Tyrannosaurus rex was most likely an apex predator, preying upon hadrosaurs, ceratopsians, and possibly sauropods. Some experts, however, have suggested the dinosaur was primarily a scavenger.