Period of evolution

1.	Period of evolution
Answer» Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately\xa0six million years.\xa0The earliest known\xa0life-forms on\xa0Earth\xa0are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya, relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the\xa0Earth\xa04.54 Gya.

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