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www.reference.com/article/sharks-sleep-529c99a16764d742

Sharks do not sleep in the same manner most other animals do, instead having split periods of rest and activity, according to the Florida Museum of Natural History. Many species of shark must maintain movement in order for their gills to extract oxygen from the water.

www.reference.com/article/great-white-shark-2f5115b25ac19f13

A great white shark, or Carcharodon carcharias, is a large shark that inhabits the coastal waters of all oceans. It is the largest macro-predatory fish on Earth.

www.reference.com/article/eats-great-white-shark-8da2514a853cd2e6

The great white shark is an apex predator, and as such, healthy adults of the species have no natural predators. Only one real threat faces the great white shark: humans that accidentally catch them, illegally poach them, pollute the waters they live in or lay nets alon...

www.reference.com/article/great-white-shark-eat-e474cb4712a1e5b1

Great white sharks eat mainly seals and sea lions. They also eat other types of fish and even sea turtles. Seals are a good source for great white sharks due to their large body fat ratios.

www.reference.com/article/long-great-white-shark-c01751f2d4f8933c

An adult great white shark reaches an average of 15 feet in length. However, several great whites exceeding 20 feet and 5,000 pounds have been recorded, making the species the largest predatory fish on the planet.

www.reference.com/article/big-great-white-shark-cb7d5472b1a83d9e

According to the Ocean Portal of the Smithsonian National Museum of Natural History, the average female great white shark is 15 to 16 feet long while the average male is 11 to 13 feet long. Very large great white sharks have been found at 20 feet long.

www.reference.com/article/great-white-sharks-eat-f5229aadd82fe855

A 2013 study, detailed by Discovery, explains that great whites have a faster metabolism than previously thought and probably feed every few days. The study indicated that the amount of energy required by a great white was equivalent to eating a seal pup every three day...