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Q&A Paleozoic marine creatures are now in contemporary sea. What will happen?

Let's suppose Paleozoic marine creatures (Trilobites, early fish, and many else) has appeared in oceans of 2017. What kind of advantages and disadvantages will they have when they compete with mode...

2 answers  ·  posted 7y ago by Heart_L‭  ·  last activity 7y ago by Heart_L‭

Question biology sea sea-creatures