The exact nature of the evolutionary relationships between modern humans and their ancestors remains the subject of debate. Human history or world history is the record of humankind from prehistory to the present For the first time in earth’s history, life—with human technology as its agent—can permanently expand from one lonely planet out into the rest of the solar system.
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To understand where we came from, we must travel back—far beyond history, beyond even memory, into a world without humans at all
Life on earth began at least 3.5 billion years ago, perhaps even earlier, in a world utterly alien to our own.
According to birth certificates, the life of a child begins once their body comes out of the mother’s womb But when does their organismal life begin Science holds a palette of answers—depending on how one defines a human life. Ultimately, homo sapiens evolution begins alongside the origin of the chimpanzee family
Genetic evidence shows that the last common ancestor of all humans and modern chimpanzees is thought to have lived between six million and nine million years ago in africa.
