Scientists set sail for Socotra

An international scientific expedition is due to depart this week to explore the marine life around the Yemeni island of Socotra, in the Indian Ocean.

The expedition -- part of a five-year United Nations survey of the island -- is due to spend two months there.

A BBC Correspondent in the region says the scientists believe Socotra's unique environment may be home to previously unknown plant and animal species, which could yield important medical discoveries.

From the newsroom of the BBC World Service