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Human - Wikipedia

en.wikipedia.org/wiki/Human

Modern humans are the only extant members of Hominina tribe (or human tribe), a branch of ... Social interactions between humans have established an extremely wide variety ..... a long-standing sour...

How long have humans been on earth? | Reference.com

www.reference.com/world-view/long-humans-earth-5f5c318d609cd262

Modern humans have existed for roughly 200000 years. The species to which humans belong, Homo sapiens, is the only species of human alive today.

How Long Have Humans Been On Earth? - Universe Today

www.universetoday.com/38125/how-long-have-humans-been-on-earth/

Jan 26, 2006 ... While our ancestors have been around for about six million years, the modern form of humans only evolved about 200000 years ago. ... Next came Paranthropus, which existed between about one million and three million ...

www.ask.com/youtube?q=How Long Have Humans Existed?&v=Ve969_F71KI
Jan 15, 2015 ... Within the history of everything we know from the Big Bang to this moment, where do humans fit in? Click here to see more videos: ...

For How Long Have We Been Human? : 13.7: Cosmos And Culture ...

www.npr.org/sections/13.7/2012/09/11/160934187/for-how-long-have-we-been-human

Sep 13, 2012 ... Around 12,000: Onset of agriculture and human settlements. Up until this period, all human groups lived by hunting and gathering.

How long have humans existed on Earth? - Quora

www.quora.com/How-long-have-humans-existed-on-Earth

Too long - no seriousy probably about 5 million years but it depends what you define as human. For example would Autralapithicus (forgive my spelling) be ...

If the Earth is 4.5 billion years old, and humans have only been ...

www.quora.com/If-the-Earth-is-4-5-billion-years-old-and-humans-have-only-been-around-for-a-few-hundred-thousand-years-how-do-we-know-there-have-not-been-many-many-more-civilizations-and-species-before-us

A lot of people have covered the timeline. We do not know -- for a fact -- that no other intelligent ... 4.5 billion years is a long time. Around 3000 of those .... Edit: The question used to suggest that humans have existed for "a few thousand years.

How Long Have Humans Dominated the Planet? - Scientific American

www.scientificamerican.com/article/length-of-human-domination/

Dec 6, 2013 ... A call goes out for a new global effort to puzzle out humanity's ecological history over the last 50000 years or more.

Why is there only one human species? - BBC News - BBC.com

www.bbc.com/news/science-environment-13874671

Jun 23, 2011 ... Several human species have evolved on Earth so why did only ours ... Not so very long ago, we shared this planet with several other species of human, ... is that all the different species of human that have ever existed were ...