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.
The whale shark-latin name: rhincodon typus-is the largest fish in the sea, averaging 9 meters in length. The smallest whale shark seen by Deep Blue Divers in the waters of Utila was approximately 3 meters, the largest approximately 12 meters in length. The whale shark is believed to be highly migratory and the deep waters of the north side of the island of Utila is on their migratory path.