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An international scientific expedition has discovered nitrogen-breathing bacteria, which may have descended from one of the earliest life forms on our planet. These deep sea organisms, which first evolved on the Earth nearly 3 billion years ago, have the oldest known DNA.
A VAST 'carpet' of underwater microbes that covers an area as big as Greece has been discovered on the seabed off the west coast of South America.
The ocean depths are home to an estimated 20million species ofmarinemicrobe. Picture: Reuters
which may have descended from one of the earliest life forms on our planet.
These deep sea organisms, which first evolved on the Earth nearly 3 billion years ago, have the oldest known DNA.