2006-12-07 06:21:06 · 3 answers · asked by stinky 1 in Science & Mathematics ➔ Biology
The genus, Homo, is 1.5 to 2.5 million years old.
Homo sapiens, Modern Man, appeared about 130,000 years ago.
Civilization started 5,500-6,000 years ago.
2006-12-07 06:29:24 · answer #1 · answered by novangelis 7 · 0⤊ 0⤋
So far? Evolution is a continuous process since the dawn of life, so a couple of billion years. Existence: maybe a million years. Civilization: around 10,000 years.
To go? Anyone's guess, but I'm just hoping we last through my lifetime.
2006-12-07 14:33:52 · answer #2 · answered by Amy F 5 · 0⤊ 0⤋
Existence: Hard to say. The process of becoming fully human from our Homo sapiens ancestor occurred over a period of about 50,000 years, from about 100,000 years ago to 50,000 years ago. So, let's say existence for 50,000 years.
Civilization: that requires agriculture. Agriculture was invented independently many times, and in some cases abandoned and rediscovered. Anyway, about 20,000 years.
Evolution: If you accept macroevolution, 3.5+ billion years.
2006-12-07 14:26:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋