Q&A

What is the most important life form on Earth?

What is the most important life form on Earth?

Plants rule the planet—at least in terms of sheer mass. Many tallies of Earth’s life use biodiversity as a measurement and simply count the number of species.

What percentage of Earth’s life is human?

0.01\%
Humans comprise a very small share of life on Earth — 0.01\% of the total, and 2.5\% of animal biomass [animal biomass is shown in the right-hand box on the visualization above].

Are humans biomass?

Across 65,000 living species in total, nearly half are bony fish like piranhas, salmon, or seahorses. Surprisingly, humans contribute a relatively small mass compared to the rest of the Animal Kingdom. People make up only 0.01\% of all the biomass on the planet.

Are there more fish than humans?

The total cattle biomass would be greater than ours (more than 500 million tons), but sheep biomass would be considerably less (below 100 million tons).”…toggle caption.

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Species Population Biomass (million tons)
Ants (many species) 10 billion billion 3,000
Marine fish (many species) 800-2,000

What is the origin of life on Earth?

No one yet knows exactly how life on Earth began (yet), but it’s very likely it began through natural processes. After beginning, it evolved through natural selection into larger, more complex life forms, which led to the life forms we can observe today, including ourselves (humans). There is a purpose to existence.

How long have humans existed?

Homo sapiens have existed in their modern form for only about 100,000 years or so. Multicellular animal life has existed more than half a billion years. In other words, human beings have managed to all but destroy their own planet within the tiniest fraction of time following their appearance; nearly the second they were able.

How many intelligent life forms are there on Earth?

There are a huge number of intelligent life forms on Earth. All mammals and all reptiles are intelligent, as far as I know, which already puts the number at hundreds of thousands of intelligent species. And there are intelligent molusks, squids, and so on. Actually, all insects are intelligent, at least a bit.

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What was life like on primitive Earth?

Primitive Earth was very different than the way things are now. There were probably many oceans and seas with many hot vents at the bottom of these waters and quite a bit of volcanic activity on land. The atmosphere most likely contained water, methane, ammonia, and hydrogen, unlike our current atmosphere, which is mostly nitrogen and oxygen.