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Showing results for tags 'dinosaur variety'.
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Liky posted a topic in Questions & AnswersConsidering the length of time they lived it seems there are not just too few but unbelievably few species that people have discovered, don't you agree ? Also this leads me to the question which I could not find an answer to in google... that must mean something. How did the biological variety change though the course of the planets history. Is there a way we can know, were there more animal and plant species 1, 10, 100 million years ago?