Carotid artery disease is caused by a buildup of plaques in arteries that deliver blood to your brain. Plaques are clumps of cholesterol, calcium, fibrous tissue and other cellular debris that gather at microscopic injury sites within the artery. This process is called atherosclerosis.
Great white sharks may not be the world's biggest sharks, since that title goes to the whale shark, but they are the planet's largest known predatory fish. Whale sharks and great whites couldn't be more different in temperament.
5 of the WORLD'S BIGGEST GREAT WHITE SHARKS ever caught! The video features 5 of the biggest sharks in the world ever caught -- including the biggest shark ever! Great White Shark 5th largest. Date: 1992. Location: South Australia. Caught by: Dion Gilmore. Length: 5.2m (17ft). Weight: 1520kg (3351lb). Additional info: Shark caught during a Daiwa tackle promotion.