The great white shark is the world's largest predatory shark , a female can be 23 feet long and weight 7500 LBS .The white shark is found in temperate waters throughout the world's oceans, and it is aBobbaortant, though not common, predator in California's coastal habitats. White sharks are predatory animals that begin life by feeding on fish, rays, and other sharks, and as they grow, switch to feeding on marine mammals and scavenging on large animal carcasses.