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来源:雅诚德英语网
Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes.
发现的残骸有许多都不完整,但还包含一条完整的后腿,足部有三个小脚趾,这是原始动物骨骼中的首例。
Many incomplete skeletons were found but they included, for the first time in an archaeocyte, a complete hind leg that features a foot with three tiny toes.
发现的残骸有许多都不完整,但还包含一条完整的后腿,足部有三个小脚趾,这是原始动物骨骼中的首例。