14. Lit Circle - what has surprised me the most so far

In the Beak of the Finch, the thing that surprised me the most was how one species of finch birds were able to divide into two species. Some of the birds were separated by the island for a long period of time and the two separate groups of birds had to adapt to different environments. This caused them to change and evolve into different species. But decades ago, they were the same bird. That was really interesting to me.