Transcription: Believe it or not, there isn't one single classification system that all scientists agree about. Well, if they all agreed, they'd have nothing to argue about. And remember, our classification needs to reflect how animals have evolved, how they're related to other animals. And because we find out more all the time, and because we're having to work with the animals around today and the fossils we can find, a mere fraction of the species that have existed since life began, we're probably never going to get it perfectly right. just not enough information. Anyway, the system that most scientists ag ...
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