But he now looks back in horror after his dream dive turned into a hellish nightmare when he watched a white-tip shark sink its teeth into a fellow diver's leg. And while the horrific incident ...

Scientists believe their teeth—which are not used in feeding ... as large as a full-grown whitetip reef shark. During the 20th century, basking sharks were widely fished for their liver ...

That is why shark teeth are the most abundant vertebrate ... their core temperature up to 15°F above ambient seawater. Cocos whitetip and lobster. NOVA: Are sharks insensitive to pain?

Oceanic whitetip sharks are the boldest, most inquisitive and opportunistic feeders of all sharks. But when living in an ocean “desert” where meals are scarce, it is important to check out ...