Extreme seabed-survival boosts hope of aliens

Microbes discovered by a lake of liquid carbon dioxide under the sea off Taiwan could help us locate life on Mars, researchers say.
Japanese and German researchers have found billions of bacteria and other tiny organisms living in a layer of sediment which traps the CO2 under the seabed. Their survival in such a hostile natural environment suggests that something similar could be happening on other planets.

New Scientist, 28 August 2006