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Oxygen may have helped complex life arise a billion years early

Oxygen may have helped complex life arise a billion years early

23 April 2018

Earth’s air suddenly got a lot more oxygen around 1.6 billion years ago and that could have triggered the evolution of large multicellular organisms

The Dresser formation

3.5-billion-year-old fossils hint life evolved in pond, not sea

9 May 2017

Fossils discovered in rocks in a hot, arid region of Australia raise hopes that we could find evidence of past life on Mars - if it ever existed

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