Question

Darwin recorded distinct species of finches on different islands in the Galapagos. The images below show two species of finches he observed.
On island X, he saw both species of finches. On island Y. he only saw the finch on the right. Based on these observations, what is the most likely
conclusion Darwin would have made?

Answer 1

The conclusion for this particular observation would be that one of the finches has food sources on both islands, thus lives on both of them, while the other finch has food sources only one of the islands, thus lives on that island. The food sources about which the finches, or any other organisms, have specialized, determines where they can be found. If there is sufficient amount of the food source to support a population, then the species can and will probably live there, but if there isn't then the species can not, and will not live there.