Marble Bar, Australia

The Birthplace of Life on Earth

Microscopic fossils suggest Australia as the birthplace of sulphur-based life forms

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Did life on Earth originate in Australia?

It is now considered highly possible, given the finding in 2011 that Earth's oldest fossils come from Western Australia. If you're willing to head to the remote Strelley Pool (about 1,500km north of the state capital, Perth), you can visit the very place.

Scientists from the University of Western Australia and the UK's Oxford University found that microscopic fossils from Strelley Pool show convincing evidence for cells and bacteria living in an oxygen-free world over 3.4 billion years ago. They suggest that early life was sulphur-based, living off and metabolising compounds containing sulphur, rather than oxygen, for energy and growth.

3.4 billion years ago the Earth was dominated by volcanic activity. The sky was cloudy, the waters hot, and land masses were small. Strelley Pool, in the Pilbara region of WA, would have been a sea shore. It is now located about 200km inland from Port Headland. The microfossils collected from this location are well preserved between the quartz sand grains of the oldest beach known on Earth, in some of the oldest sedimentary rocks that can be found anywhere.

In one trip you can stand at what may be the birthplace of life on Earth and visit the planet's oldest beach, all in the middle of a large, dry, red-earth landscape.

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    Marble Bar, Marble Bar, 6760, Australia
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