Scientists unveiled the first evidence on Tuesday that early humans co-existed in Africa 300,000 years ago with a small-brained human-like species thought to already be extinct on the continent at that time.
The findings, published in three papers in the journal "eLife", raise fresh questions about human evolution, including the prospect that behaviours previously attributed to humans may have been developed by hominin precursors of Homo sapiens.
Hominins are an extinct group of the same genus as humans, the only surviving members of that category today. Man's nearest living relatives, chimpanzees and gorillas, are further removed from Homo sapiens biologically than hominins are.
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It is almost a certainty that Homo sapiens killed off these hominins. Why? Probably because we considered them inferior to us and of no greater importance than an insect.
We can expect the ETs to act the same way. Greater "wisdom" and technological superiority do NOT result in tolerance or compassion.
If you need further proof, just take a look at Silicon Valley. Tech tycoons live in splendor, surrounded by squalor for which they have little or no compassion.
And quite frankly, genocide is the ultimate expression of "identity politics".