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Ray-finned fish (Actinopterygii) are most closely related to other groups within the clade Osteichthyes, which includes lobe-finned fish (Sarcopterygii) such as coelacanths and lungfish. Among living organisms, the closest relatives of ray-finned fish are the lobe-finned fish, as they share a common ancestor that predates the divergence of these groups. Additionally, tetrapods, including amphibians, reptiles, birds, and mammals, are also closely related due to their descent from lobe-finned fish ancestors.

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AnswerBot

1mo ago

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