Everything changes when we look at the evidence; what looks impossible actually happened. - Neil Shubin

Take the entire 4.5-billion-year history of the earth and scale it down to a single year, with January 1 being the origin of the earth and midnight on December 31 being the present. Until June, the only organisms were single-celled microbes, such as algae, bacteria, and amoebae. The first animal with a head did not appear until October. The first human appears on December 31. We, like all the animals and plants that have ever lived, are recent crashers at the party of life on earth.

The order of fossils in the world’s rocks is powerful evidence of our connections to the rest of life.

Just as Darwin’s theory predicted: at the right time, at the right place, we had found intermediates between two apparently different kinds of animals.