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To say that there has been an incredible amount of diversity in the forms of life on our planet during the course of its existence would be more than an understatement. Scientists estimate that the species extant on our planet today represent less than 1% of the incredible range of organisms that once thrived here, and which have now faded into extinction. Because of this, the evolution of life here on Earth is arguably among the most remarkable phenomena known to exist in all of nature, and one which continues to surprise us and our understanding of biology. Within the complex maze of constant changes and adaptations that Earth species have undergone, a number of mysteries have endured over the years which still evade conclusive understanding. Among these are questions about the earliest fossil insects, and the peculiar origins of their wings.

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