100,000 years, approximately.
200,000
Homo sapiens, as a species, have existed for about 300,000 years. Hominids as a whole have existed for about 14,000,000 years.
Alcatraz existed for 28 years
No. The Cambrian period was abut 550 million years ago, the earliest humans existed only 200,000 years ago
Nobody. Grass evolved millions of years before humans existed.
Long before modern humans existed. Likely many millions of years ago, but there is noway to know.
26 years
A:Modern humans have existed for over two hundred thousand years. Our distant hominid ancestors existed for millions of years before that.
Dinosaurs existed from 231 million years ago to 65.5 million years ago, a time span of 166 million years. Humans as a genus have only been around for 2.3 million years, and modern humans for only 200,000 years. So dinosaurs existed for a much longer time than we have so far.
No, because all dinosaurs except birds went extinct millions of years before humans existed.
4.57 billion years
True humans have existed for 60,000 to 80,000 years. People who appeared fully human (but without all human behaviors) have been around for at least 200,000 years. Before that almost humans have here for about 500,000 years.
as many animals and humans live both have skin which its leather.