Species Problem

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The species problem is a mixture of difficult, related questions that often come up when biologists identify species and when they define the word "species". One common but sometimes difficult question is how best to decide just which particular species an organism belongs to. Another challenge is deciding when to recognize a new species. This is a question for the biologist who discovers organisms that appear to be different from those that belong to already described species. A related question arises when new data indicate that one previously described species actually may include two or more separately evolving groups, each of which could possibly be recognized as a separate species.

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High Quality Content by WIKIPEDIA articles! The species problem is a mixture of difficult, related questions that often come up when biologists identify species and when they define the word "species". One common but sometimes difficult question is how best to decide just which particular species an organism belongs to. Another challenge is deciding when to recognize a new species. This is a question for the biologist who discovers organisms that appear to be different from those that belong to already described species. A related question arises when new data indicate that one previously described species actually may include two or more separately evolving groups, each of which could possibly be recognized as a separate species.