An intensive six-week search by an international team of marine biologists involving two boats that ploughed up and down the world's busiest river last December failed to find a single specimen.
The cause of the freshwater dolphin's demise was instead all too plain to the investigators. It had become a victim of the world's most populous country's race to get richer. One tenth of the world's population live in the Yangtze river basin. During the expedition, scientists counted 19,830 ships on the 1,669km of the river they surveyed - one large freight vessel every 800m.The independent