求鉴定此昆虫,如图
书单推荐残心
蛇为什么没有腿?
渐渐退化,失去原有功能,仍保留至今的器官就叫做"痕迹器官"(vestigial
as pineal gland which was originally believed to be a "vestigial
Tips:Do Not Provide
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