Abstract
DR. J. P. LOTSY, in his letter to NATURE of November 24, asks zoologists to answer the question: Is there any evidence that the presence of oligopyrene and apyrene sperms in some insects and molluscs is due to hybridity?
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GATENBY, J. Hybridity and the Evolution of Species. Nature 108, 469 (1921). https://doi.org/10.1038/108469a0
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DOI: https://doi.org/10.1038/108469a0
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