Reputable information about the great white shark is available on websites for organizations such as Ocean Portal, the Florida Museum of Natural History and National Geographic. As of 2015, the International Union for Conservation of Nature classifies the great white shark as a vulnerable species.
The average great white shark grows up to about 15 feet in length, though large specimens may measure in excess of 20 feet. The great white shark is a predatory fish that moves in oceans throughout the world, and its diet consists of mainly marine mammals and other fishes. The great white shark has a remarkably keen sense of smell, which gives it the ability to detect a minuscule amount of blood amongst vast quantities of water.