In ecological balance, I learned that the top predators consume herbivores to keep their numbers in check and ensure that there are enough grasses to support the system's entire ecology. Moreover, the 10% rule states that energy decreases by 90% as trophic levels are raised.

Thus, my question is: if humans did not evolve and continued to live in the jungle, can we estimate the population of human species that will be in the ecological balance?

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    $\begingroup$ This is awkward to answer, not least because homo sapiens sapiens didn't come about until long after an ancestor left the trees, so the population would by definition be 0. $\endgroup$ Mar 15 at 17:17


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