Organs of different organisms are divided into two categories based on their functions, structures and origin, that is Analogous organs and Homologous organs. The points of differences between the two are listed in the table below.
| Analogous Organs | Homologous Organs |
|---|---|
| Organs having different internal structures | Organs having similar internal structures |
| Functions of these organs are similar | Functions of these organs are different |
| Different origins | Common origin |
| They display Convergent Evolution | They display Divergent Evolution |
| Adaptive Radiation is Absent | Adaptive Radiation can be seen in some cases |
| They have dissimilar developmental pattern | They've similar developmental pattern |
| Similar niche/habitat can lead to formation of Analogous Organs. | Speciation can lead to formation of Homologous Organs |
| These organs show no relation with ancestors | These organs are proof of common ancestors of different species. |
| Example Include; Wings of bat and insects, Leaf tendril and stem tendril etc | Examples include; Forelimbs of vertebrates, stem and root modifications in plants, Darwin Finches etc |