Ocean census reveals hidden depths
The first systematic attempt to map the Earth’s last uncharted biosphere - the oceans - has so far logged almost a quarter of a million species, researchers reported on Monday. And there may be ten times more species yet to find. Scientists from the International Census of Marine Life - a 10-year research effort - say that at the current rate of discovery, it could take 1000 years before the last ocean-living species is revealed. The project is a global attempt to catalogue and map discoveries, while co-ordinating research to find new species.