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The Sarcopterygii (lobe-finned fishes) use their swim bladde…
The Sarcopterygii (lobe-finned fishes) use their swim bladder primarily for while the Actinopterygii (ray-finned fishes) use their swim bladder for
The Sarcopterygii (lobe-finned fishes) use their swim bladde…
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The fishes, as we know them today, originated about 550 mill…