Ancient Earth May Have Smelled Like Rotten Eggs

11:34 minutes

Reporting in Proceedings of the National Academy of Sciences, researchers write about finding fossils of bacteria-like organisms that lived nearly two billion years ago. Paleobiologist Martin Brasier of the University of Oxford explains that these ancient creatures belched hydrogen sulfide—the stench of rotten eggs—after meals, suggesting that the early Earth may have been a smelly place.

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Martin Brasier

Martin Brasier is a paleobiology professor at the University of Oxford in Oxford, England.

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About Christopher Intagliata

Christopher Intagliata is Science Friday’s senior producer. He once served as a prop in an optical illusion and speaks passable Ira Flatowese.

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