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?

Because of its similarities . It is the process by which organisms are most suited to their local environment to survive.

PLATO SAMPLE ANSWER;

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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