Why does this recent discovery about the Galapagos finches prove that it’s often challenging for scientists to determine when two groups of individuals are separate species?

Individuals may look different from each other, meaning they have a wide degree of genetic variation, but they still breed and produce fertile offspring. Scientists must evaluate many different factors—genes, anatomical structures, mating seasons, and geographical location—to determine whether it is possible for two species to produce fertile offspring.

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mahima6824soni mahima6824soni · Answer 2 · 2022-07-31T13:34:01+02:00

It's challenging for scientists to determine the difference between two groups of individuals because, on Galápagos island, the species of finches look different but still breed with other finches and produce fertile offspring.

What is Galápagos island?

Galápagos island is an island on the west of Ecuador in the Pacific Ocean. It is a volcanic island and is famous for its endemic and different species of different organisms.

Charles Darwin researched the species of finches on the Galápagos island for many years. He observed so much variation in these finches as they also give a theory of natural selection.

Hence, because the species of finches on the Galápagos island have various appearances but still mate with other finches and produce fertile young, it is difficult for scientists to distinguish between two groups of people.

Learn more about Galápagos island, here:

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