Map of the world. The whale shark is the largest known fish. It reaches 20 m (66 ft.) in length and weighs 20 t (22 tn.). It is mainly solitary in nature, but it can also ..
The BBC's Natural World goes on a quest to understand the world's most feared predator.
Beginning at the fabulous coral reef of Ningaloo in Western Australia, intrepid marine biologist Mark Meakin attempts to unravel the mysterious wanderings of the biggest fish in the sea. Whale sharks grow to over 12 meters long but are gentle, filter-feeding giants; even Mark's five-year-old son can swim alongside them. Yet no-one knows where they go once they leave Ningaloo's turquoise lagoons. ...