The Great Pyrenees even has a double dewclaw, an inherited trait called polydactyly, so that there are two bony digits instead of one.
其次，“义趾”
形态
分布是
，迄今没有看到关于其发生形态“遗传规律”文献。
)
爪,(鹿等)假蹄The Great Pyrenees even has a double dewclaw, an inherited trait called polydactyly, so that there are two bony digits instead of one.
其次，“义趾”形态分布是，迄今没有看到关于其发生形态“遗传规律”文献。
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