Concept
Version 7
Created by Boundless
The Biological Species Concept
Species Similarity & Reproduction
Species that appear similar may not be able to reproduce. The (a) African fish eagle is similar in appearance to the (b) bald eagle, but the two birds are members of different species.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Formation of New Species. October 16, 2013."
http://cnx.org/content/m44574/latest/Figure_18_02_02ab.jpg
OpenStax CNX
CC BY 3.0.