Earth: mostly harmless. 80% veggies 15% germs 4.7% mushrooms, slime.

An estimate of the world's biomass composition today, from a paper summarised here:

And to corroborate your point:

"Finally, we highlight that the mass of humans is an order of magnitude higher than that of all wild mammals combined and report the historical impact of humanity on the global biomass of prominent taxa, including mammals, fish, and plants."

@risabee @Antanicus

Furthermore: people are 90% bacteria.

I might get a business card printed:

wu-lee: 90% germs

@Antanicus @risabee

@wu_lee @Antanicus @risabee

40% of ocean biomasss estimated to be archaea (which are not "germs" ie bacteria).

Adding deep earth archaea, we can estimate more than 50% of earth biomass is archaea.

@hhardy01, So admit I took a liberty and lumped archaea, protists and viruses in with "slime" for the sake of a pithy statement.

Bar-On's paper says "note that several of the results should be interpreted with caution due to the large uncertainty associated with some of the estimates, mostly those of total terrestrial protists, marine fungi, and contributions from deep subsurface environments."

However, I see it does reference Lipp et all in the supplemental info.

@risabee @Antanicus

@wu_lee @Antanicus @risabee


"The subsurface ‘deep biosphere’ represents one-tenth to one-third of Earth's total global present-day biomass."

"We argue that the deep biosphere outweighed the surface biosphere by about one order of magnitude
for at least half of the history of life on Earth."

So Earthlings were mostly subterranean slime; now just a significant fraction of us are.

@risabee @Antanicus

@wu_lee @Antanicus @risabee

Gold also had what I think of as the "ancient astronauts' garbage dump" theory of life on earth's beginning.

Gold, T. "Cosmic Garbage," Air Force and Space Digest, 65 (May 1960)

Also: one of Sean McMahon's creations is a picture of the "Tully Monster",


Tullymonstrum was once an actual thing, remnants thereof found in modern Illinois.

A pioneer of that new and tiny fraction of the non-slime Earthling population, of which we are a very very recent development. Like, very.

@Antanicus @risabee @hhardy01

Tully's monster was sucking the slime about 300 million years ago, in the Pennsylvanian period.

Which is pretty recent history, on the scale of things.

@hhardy01 @risabee @Antanicus

@wu_lee @risabee @Antanicus

When I saw the picture of the Tullymonstrum I thought "that looks like a lamprey" and I guess that's what some experts think too. It's weird looking but not as weird as Hallucigenia.

And of course there's Tardigrades.

@wu_lee @Antanicus @risabee

Although it was highly speculative, Thomas Gold correctly predicted there was a massive amount of biomass in the deep terrestrial environment in "The Deep Hot Biosphere" in 1992.

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