Ocean bacteria may be closest relatives of mitochondria in our cells
The closest living relatives of the bacteria that moved into the cells of a larger organism more than a billion years ago and eventually became mitochondria powering our cells may have been identified living in hot springs
![Ocean bacteria may be closest relatives of mitochondria in our cells](https://images.newscientist.com/wp-content/uploads/2023/08/09175152/SEI_167046469.jpg)
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