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Questions and Answers
During which era did birds and mammals first appear?
During which era did birds and mammals first appear?
What major event killed 95% of life at the end of the Paleozoic Era?
What major event killed 95% of life at the end of the Paleozoic Era?
Which era was known as the Age of Reptiles?
Which era was known as the Age of Reptiles?
When did flowering plants first appear on Earth?
When did flowering plants first appear on Earth?
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