Polite reminder: Earth is a tree planet with some bacteria. Everything else is just the extra stuff that lives here too.

For everyone who found this interesting, the research paper it originally came from us Bar-On et al (2018) and it's free to read here:

Interestingly, the biomass distribution on Earth is overwhelmingly terrestrial, because most biomass is plants and most plant biomass is trees (with some other woody biomass like shrubs and things).

After terrestrial, a big slice is deep subsurface, which is mostly microbes.

Marine biomass is a surprisingly small fraction considering how much of Earth is ocean. Most ocean life is apparently animals and protists.


@InvaderXan what is deep subsurface ? Is it like... in the ground ?

@Nausicaa Deep below the ground. Shallow subsurface is where you find plant roots and fungus. Deep subsurface is below that. There's a lot going on in the deeper parts of Earth's crust.

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