Carotid artery. 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.
One of the biggest great white sharks ever caught on tape. Before you go, we thought you'd like these... Nicknamed 'Deep Blue,' this great white is almost as long as the 22-foot-long boat the researchers were aboard near Guadalupe, Mexico, nearly 165 miles away from mainland.
A widely distributed photo taken in 1945, for example, shows a great white shark caught in Cuban waters. Known as the Cojimar Specimen, the shark at the time was said to measure 21 feet long and weigh 7,100 pounds. An entire village seemed to come out for the photo, since several adults are seen in the background, while kids sit on the long-dead shark, legs dangling over the side.