Geologic time scale

Lines of Evidence: the Science of Evolution

At the heart of evolutionary theory is the basic idea that life has existed for billions of years and has changed over time.

Overwhelming evidence supports this fact. Scientists continue to argue about details of evolution, but the question of whether life has a long history or not was answered in the affirmative at least two centuries ago.

The history of living things is documented through multiple lines of evidence that converge to tell the story of life through time. In this section, we will explore the lines of evidence that are used to reconstruct this story.

spacer
Stegosaurus image courtesy of Museum Victoria; photo by Frank Coffa.





Next Section
Fossil Evidence









Search · Site Index · Navigation · Copyright · Credits · Contact
Understanding Evolution For Teachers Home · Understanding Evolution Home

Read how others have recognized the Understanding Evolution website

Spanish translation of Understanding Evolution For Teachers from the Spanish Society of Evolutionary Biology.


This site was created by the University of California Museum of Paleontology with support provided by the National Science Foundation and the Howard Hughes Medical Institute.
University of California Museum of Paleontology National Science Foundation Howard Hughes Medical Institute