A once-in-a-lifetime dive destination, the last thing you should do is show up underprepared. Here's what you need to know ...

At that time, sharks were all thought to be man-eaters, so diving down to see them was ... The U.S. Navy, in fact, once considered the hammerhead the third most dangerous species after the great ...

During the studied period, for instance, hammerhead shark ... "Our study provides a really good example of how shark diving operators and scientists, working together, can provide the important ...

Diving with tiger sharks is a popular tourist ... including dolphins, turtles, and hammerhead sharks. But getting too close may not be such a good idea. According to National Geographic, tiger ...

The Sea of Cortez, also known as the Gulf of California, is a unique corner of the Pacific Ocean. This remarkable young sea is thought to be around five million years old and home to nearly 900 ...

Hammerhead sharks are consummate predators that use their oddly shaped heads to improve their ability to find prey. Their wide-set eyes give them a better visual range than most other sharks.

NOVA: What's it like to see 400 hammerhead sharks swimming around you at once? Howard Hall: It's a great feeling. It's interesting to see animals that are so numerous and so alien at the same time.

hammerhead sharks and dolphins during a dive at these spots. According to previous travelers, novice snorkelers and divers should consider visiting Las Grietas (near Puerto Ayora on Santa Cruz ...