Geobacter metallireducens

Added: 2026-05-28

[00:00:00]Deep beneath the ocean [music] floor, some bacteria do something impossible.

[00:00:05]They eat metal.

[00:00:07]In 1988, [music] microbiologist Derek Lovely helped uncover this hidden world while studying strange microbes living in mud [music] without oxygen.

[00:00:18]One of the most famous was a bacterium called Geobacter metallireducens, an organism that could pull energy directly from metal.

[00:00:27]Not plants, not sugar, not sunlight, metal.

[00:00:33]These bacteria [music] survive in places with no oxygen, no warmth, and almost no life.

[00:00:39]To stay alive, they pull electrons directly [music] from iron, manganese, and even uranium.

[00:00:45]For most life on Earth, metal is a tool.

[00:00:48]For Geobacter, [music] it is food.

[00:00:50]Energy flows.

[00:00:51]Chemical reactions begin. Life continues. No fire, no machines, [music] no noise, just chemistry perfected over billions of years.