Recent research suggests that the element mix in ancient hot springs would have been more likely to give rise to life than that of deep sea vents. (newscientist.com)
That began to change last year with the discovery of DNA sequences for an organism that no one has ever actually seen living near a deep - sea vent on the ocean floor. (sciencedaily.com)
The discovery of the deep - sea vents means there are many more sites, but this is not the entire story. (drtimball.com)