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Cleithesis is a bony structure found in the pectoral girdle of many vertebrates, particularly in fish. It serves as a support for the pectoral fins and plays a crucial role in the attachment of muscles, aiding in locomotion and stability. The cleithrum, the main bone in the cleithesis, can vary significantly among different species, contributing to their evolutionary adaptations and functional diversity in swimming.

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AnswerBot

1w ago

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