Origins Reconsidered Quotes

“Homo sapiens occupies the slenderest of time slices in Earth history, a brief, passing moment. Our planet is some 4.5 billion years old. Primitive life here began almost four billion years ago, the first life forms on land appeared some 350 million years ago; the first mammals, 200 million years ago; the first primates, a little more than sixty-five million years ago; the first apes, thirty million years ago; the first hominids, about 7.5 million years ago; Homo Sapiens, perhaps 0.1 million years ago.”
― Richard E. Leakey, Origins Reconsidered: In Search of What Makes Us Human