Abstract
IN some ways mammals evolve much faster than most other animals. In other ways however it now seems that they evolve at the standard rate. This dichotomy is quite unexpected, but seems post facto to be predicted by a new and ecological explanation of evolution.
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VALEN, L. Two modes of evolution. Nature 252, 298–300 (1974). https://doi.org/10.1038/252298a0
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DOI: https://doi.org/10.1038/252298a0
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