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发表于2024-11-27
Animals Without Backbones pdf epub mobi txt 电子书 下载 2024
What does it mean not to have a backbone? How can you tell an arthropd from a worm? This book focuses on the many and varied creatures of the animal kingdom that get along quite well without a spinal chord. Echinoderms, arthropods, and mollusks are some of the groups described and beautifully photographed.
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Animals Without Backbones pdf epub mobi txt 电子书 下载 2024