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Sponges, worms,molluscs, insects, starfish,mammals, amphibians,fish, birds, Sponges, worms,molluscs, insects, starfish,mammals, amphibians,fish, birds, reptiles, and dinosaurs, and people. Consumer level in most food chains (herbivores,carnivores ...
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A Brief History of History Cambrian Explosion First Shellfish (570 million years ago). How do we know? ... There are no dinosaur fossils found after about 65 million years ago ...
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