About Sharks

Photo: Rob Stewart/Sharkwater

With an evolutionary history more than 400 million years old, there are 350 species of sharks and another 1,150 "shark-like" species. Shark species range from the more evolutionarily primitive, like the frilled shark, to the sleek and efficient modern species, such as the great white.

Despite the common myth that sharks are mindless "eating machines", only a few shark species are dangerous to humans. Out of  the hundreds of species, only 3 have been involved in a significant number of fatal, unprovoked attacks on humans: the great white, tiger, and bull sharks. In 2006, according to the International Shark Attack File, there were a total of 62 unprovoked attacks recorded worldwide, of which four were fatal. Considering the millions of beach-goers and recreational ocean users, this is an incredibly small number. In fact, you are more likely to be killed by a vending machine than by a shark.  Learn More>>>

Sharks generally rely on their superior sense of smell to find prey, but they also have the ability to sense movement and electrical fields created by prey. Their place in the marine food web is essential for a healthy ocean ecosystem.

The view of the shark as a solitary hunter, ranging the oceans in search of food is only true for a few species with most living far more sedentary lives on the ocean floor. Some sharks are highly social, remaining in large schools. Even solitary sharks meet to breed or on rich hunting grounds, which may lead them to cover thousands of miles in a year. Migration patterns in sharks may be even more complex than in birds, with many sharks covering entire ocean basins.