For much of history it was possible to believe that the great diversity of life on Earth was a fixed creation, that the living world had never changed. But when the first stirrings of industry demanded that fuel be dug from the earth and hillsides be leveled for roads and railways, the Earth's true past was dug up in abundance.

Biology is far from understanding exactly how a single cell develops into a baby, but research suggests that human development can ultimately be explained in terms of biochemistry and molecular biology. Most scientists would make a similar statement about evolution.

As you know, the fossil record includes not only the ancestors of crocodiles and whales, but also the ancestors of human beings. And this, of course, is why evolution remains controversial.

Kenneth R. Miller Quotes