-
Ensatina described as a ring species
This discovery was about different animals have been living in the Northern California and Oregon area spread through the southern areas where its hot and dry. These animals would move south and you can see that they had adapted to the new regions where they moved to.
https://evolution.berkeley.edu/evolibrary/article/0_0_0/devitt_02 -
“Reproductive isolation as a consequence of adaptive divergence in Drosophila pseudoobscrura” published.
This experiment was about these fruit flies that he isolated and tired to make more of them by experimenting on them. He had the males on one end and the females on the other end. He genetically made their off springs.
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/drosophila-pseudoobscura
