Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
    
Click to return to the Evolution Home Page
darwin change extinction survival sex humans religion
Online Course for Teachers: Teaching Evolution

About this Course 

SESSION 4

SESSION 4: What Are the Processes for Evolution?

Elaborate Part C: Convergent Evolution

Evidence that natural selection is a powerful process is apparent when similar adaptations are found in unrelated species that occupy similar habitats. This phenomenon is called convergent evolution. A good example of this is the similarity between marsupial mammals of South America and Australia and placental mammals of the rest of the world that occupy similar niches.

For examples of convergent evolution, take a look at:

"Convergence: Marsupials and Placentals" (pdf)

Image of an anteater.

"Convergent Evolution"

Next: Elaborate Part D: Coevolution

Videos Web Activities Site Guide About the Project FAQ Glossary Site Map Feedback Help Shop