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Evolutionary biology

Ancient bacteria liked it hot

Proteins from ancestral bacteria have been modelled and reconstructed. Strikingly, the heat stability of these proteins parallels the temperatures of their ocean habitats, as determined from the geological record.

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Figure 1: Environmental temperatures at pivotal points in early evolutionary history.


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Gouy, M., Chaussidon, M. Ancient bacteria liked it hot. Nature 451, 635–636 (2008).

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