In the vast expanse of the open ocean, a surreal scene unfolded that left the crew onboard a fishing vessel rubbing their eyes in disbelief. A lone fisherman, not on a sturdy boat or a reliable raft, ...

"Sharks are the oceans' primary predators. Eating every fish in their path. But what if you ended up in a pool full of them, and you were the prey? What would happen when they smelled your blood?

It looks incongruous at first glance: a great white shark swims in a pool as relaxed-appearing sunbathers watch on. The unusual scene was part of a rescue effort for the 1.5m (3ft) juvenile shark ...