Why were animals and insects so much bigger during the time before humans? 1.29K viewsJanuary 3, 2024 Question92.09K February 13, 2020 0 Comments Why were animals and insects so much bigger during the time before humans? In: Biology 12 Answers ActiveNewestOldest Anonymous Posted February 13, 2020 0 Comments It wasn’t in “the time before humans” it was during “the time of lots of oxygen”. We used to have a much more oxygen rich environment which meant everything could grow larger. You are viewing 1 out of 12 answers, click here to view all answers. Register or Login
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