Shark attacks on swimmers are incredibly rare, averaging only around 64 each year. And in the grand recorded history of these events, dusky shark attacks on humans are virtually unheard of. But that changed in April, when a man snorkeling off the coast of ...

"If you're a snorkeller or scuba diver [in the southern half of Australia], you'll see Port Jackson sharks, crested horn sharks, some of the three different species of wobbegong – the ornate, the spotted or the dwarf wobbegong," he says. "You will [also] see dusky whaler sharks and bronze whaler sharks."

The sight of tiger sharks off the coast of South Florida can cause panic, but discoveries in a five-year research study into migration patterns show they travel 5,000 miles in sophisticated, predictable patterns every year and have highly evolved traits ...