To protect itself, the great white shark can roll its eye backward into the socket when threatened. The retina of its eye is divided into two areas вЂ“ one adapted for day vision, the other for low-light and night. Sharks also have an вЂear stoneвЂ™ that responds to gravity, giving the animal clues as to where it is in the water: head up, head down, right side up, or upside down.ДЄ great white sharks has great vision. Inside, there are cells that can sense even the tiniest vibration in the surrounding water. The ears may be small, but theyвЂ™re powerful. Shark external ears are hard to see: they are just two small openings behind and above the eyes. The great whiteвЂ™s olfactory bulb is reported to be the largest of any shark. If there were just a single drop of blood floating in 10 billion drops of water, they could smell it! Their nostrils are on the underside of the snout and lead to an organ called the olfactory bulb. Great white sharks' most acute sense is smell. Great whites became the oceanвЂ™s top hunters through the evolution of supremely-adapted senses and physiology. And some researchers have been surprised by how fast they learn. Despite their reputation as lone hunters, great whites will cooperate with one another, hunting in groups and sharing the spoils. Its prey, including seals and dolphins, are very clever animals, and the shark has to have enough brains to outsmart them.

And then there are the teeth - 300 total in up to seven rows.Д«ut more than brawn, the great white shark has a tremendous brain that coordinates all the highly-developed senses of this efficient hunter. The torpedo shape of the great white is built for speed: up to 35 miles per hour (50 kilometers per hour). Some make journeys from the Hawaiian Islands to California, and one shark that swamВ from South Africa to Australia made the longest recorded migration of any fish. These sharks are top predators throughout the world's ocean, predominantly in temperate and subtropical waters. When great whites gather, they seem to show different behaviors, from open-mouthed gaping at one another to assertive body-slams. Many scientists now believe that great white sharks are intelligent, highly inquisitive creatures.

Life & Natural History Intelligence & Anatomy Brains over Brawn If not stopped, it could lead to the extinction of this ancient species.ДЇor more about all shark species go to our shark overview. In some areas great white populations have plummeted by over 70%. Pollution: toxins and heavy metals that build up in the shark's body. Nets: placed along coastlines to keep sharks away from beaches. Illegal hunting: sportfishing for shark jaws as trophies. Illegal poaching: selling shark fins for soup. By-catch: the accidental killing of sharks by fishermen's longlines and trawlers. As the top predators in the ocean, great white sharks ( Carcharodon carcharias) face only one real threat to their survival: us. These animals are uniquely adapted to their ocean environment with six highly refined senses of smell, hearing, touch, taste, sight, and even electromagnetism. Their ancestry dates back more than 400 million years, and they are one of evolutionвЂ™s greatest success stories.

Sharks predators