How did a spinosaurus get its food?

Spinosaurus primarily ate the fish that lived in local swamps. They would wade into a swamp and then possibly submerge their jaws in the water, because their jaws may have had pressure sensors for detecting fish that the Spinosaurus couldn't see. When a fish came within reach, they would strike, and then swallow the fish whole. On occasion, they probably hunted small herbivorous dinosaurs and scavenged on large dinosaurs.