Large numbers of endangered whale sharks have been sighted in waters off Madagascar. The first major scientific survey in the area shows there are far more of the huge fish than previously thought.

Whale sharks are large, slow moving and docile creatures that mainly inhabit tropical waters. They are long-lived but scientists have struggled to work out the exact ages of these endangered ...

Whale sharks tend to feed at aggregation sites in the southern Gulf of California off the coast of Mexico. Some of the fish that gather are still rather young and small, making them a bit more ...