This piece is part of a special project on deep time examining what the Western U.S. was like thousands, millions and even billions of years ago, and how that history is still visible and ...
All life forms — humans, animals, plants, even viruses — find a way to adapt in response to the ecosystems they call home. On average, most species exist on earth for between two and 10 million years.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results