Old fishing hooks are severe hazards for sharks

Startling data fresh off an eight-year tiger shark study in French Polynesia shows severe impacts the creatures of the sea face long after they are cut loose from fishing lines.

Scientists study manta rays' impressive ability to heal

"Whoopi' the manta ray—a regular visitor to Western Australia's Ningaloo Reef—has helped University of Queensland and Murdoch University scientists study rays' impressive ability to heal.

Tiger sharks revealed as lazy predators

One of the ocean's most feared predators – the tiger shark—has been revealed as a relaxed and sometimes lazy hunter by scientists studying their behaviour.

Why do sharks dive?

Is it to regulate their body temperature? Conserve energy? Find food?

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