N any small marine gastropod mollusc of the group or order Pteropoda, in which the foot is expanded into two winglike lobes for swimming and the shell is absent or thin-walled 翼足目软体动物 (Also called sea butterfly)
Dr Riebesell is particularly interested in the ecosystem role of pteropods, also called sea butterflies.
里贝塞博士特别感兴趣的是生态系统中翼足类的作用，它也被称作海底蝴蝶。
One fear is that the increasing acidity will kill off pteropods and similar creatures with calcium-carbonate shells or skeletons.
一个担忧是，越来越高的酸度将毁灭翼足类动物和类似具有碳酸钙外壳或骨架的动物。
Dr Riebesell is particularly interested in the ecosystem role of pteropods, also called sea butterflies. These elegant micro-molluscs are a vital food for some fish.
Riebesell博士对翼足类动物，又叫翼足目软体动物在生态系统中的角色尤其感兴趣，这些幽雅的微小软体动物是一些鱼类的重要食物。
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