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.
Below, you can learn about the largest species in the two main groups of fish. Answer: The largest fish in the world is a shark - the whale shark (Rhincodon typus). The whale shark can grow to about 65 feet long and weigh up to 75,000 pounds. Imagine encountering this huge animal in the wild! Despite its huge size, though, whale sharks are pretty gentle.