How did humans come into existence?

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asked Dec 11, 2021 in Science by Felixdekatt (1,080 points)
How did humans come into existence?

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answered Dec 13, 2021 by Varticusfarticus (3,530 points)
Humans evolved from other species of creatures in the sea.

If you've looked at sea creatures there are some sea creatures that appear human like and so it's thought that humans actually evolved billions of years ago from those creatures mating.

Then as apes came into existence it's though that humans more evolved into what we are now from apes.

Apes are very similar to humans.

The first human ancestors appeared between five million and seven million years ago, probably when some apelike creatures in Africa began to walk habitually on two legs.

They were flaking crude stone tools by 2.5 million years ago.

Then some of them spread from Africa into Asia and Europe after two million years ago.

Modern humans originated in Africa within the past 200,000 years and evolved from their most likely recent common ancestor, Homo erectus, which means 'upright man' in Latin.

Homo erectus is an extinct species of human that lived between 1.9 million and 135,000 years ago.

One of the earliest known humans is Homo habilis, or “handy man,” who lived about 2.4 million to 1.4 million years ago in Eastern and Southern Africa.

A subsequent theory, known as the “Kelp Highway,” came closer to the mark: As the massive ice sheets covering western North America retreated, the first humans arrived on the continent not only by foot but by boat, traveling down the Pacific shore and subsisting on abundant coastal resources.

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