How different are the swimming strategies used by osteichthyes and chondrichthyes? Why do sharks need to move their body to swim while bony fish do not?
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Osteichthyes have a swim bladder, a gas-filled organ that helps them maintain buoyancy. By adjusting the amount of gas in the swim bladder, bony fish can control their vertical position in the water column without much effort. They primarily use their fins for Show more…
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