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GY7 DNA and common descent

So I think it was like bacteria, loads of different ones with different type of DNA and stuff in their bacteria. And then it came like bugs and critters and reptiles and fish. There was like, reptiles and amphibians and birds, bears and foxes and apes. I think some of the birds died out. Before the birds there were dinosaurs. All those different birds had different types of DNA so they all looked different. Like two types of different bird had a child and that became another type of bird.

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