Morphology is the study of the structure as well as the form of the organisms and studying their specific features.
When the morphological characters of two or more different organisms are compared usually for the bass of taxonomical characterization then this is termed as comparative morphology.
Using comparativemorphology both similarities and differences in the anatomical structures of the organisms are observed.
Using the comparative morphological studies one can see the common descent as well as the divergence of organisms.
Therefore, Dr. Wilson is using comparative morphology to study similarities between the wing of a bat and the arm of a monkey.
