A little flight through Evolution

I accidentally stumbled upon the website www.reptileevolution.com since they used the woolly derby's oppossum skeleton I build to highlight the traits of the genus Caluromys. And what an interesting website it is!

To cite the website itself: "Here you'll be able to trace the lineage of major clades, including the line that ultimately led to humans. You'll see where and when body parts (= traits) became added, substracted and modified."

I absolutely love evolution and the examples of divergent and convergent evolution. How the hands of bats enlongated to become wings and how the ribs of the Draco lizards, which they can extend and retract, formed wings in the same way as well.

Both species have a functionally similar trait: their wings. They arose through convergent evolution, making them an analogous trait. Whereas homologous structures are traits that have a common origin but can have dissimilar functions, such as their hands and ribs.