The article did not take the time to do a deep dive into feather evolution so it could focus specifically on the topic of how marvelous modern feathers are. However if you are interested in the fascinating topic of the evolution of feathers there are some great resources available.
The article did not take the time to do a deep dive into feather evolution so it could focus specifically on the topic of how marvelous modern feathers are. However if you are interested in the fascinating topic of the evolution of feathers there are some great resources available.
For a quick skim, this paper is quite good:
https://www.cell.com/trends/ecology-evolution/abstract/S0169...
But for deeper dive, this book is quite excellent
https://books.google.ca/books/about/The_Evolution_of_Feather...
I hope you enjoy these resources,
Cheers!