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bosh bosh
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6 years ago
Most bony fishes are considered to be much more efficient at maneuvering than cartilaginous fishes. Explain why this is so and how it arose.
 
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6 years ago
Many bony fishes, such as those that live on coral reefs, are better at maneuvering then a shark because their fins are much more flexible. The evolution of these flexible fins was probably the result of the evolution of the swim bladder of bony fishes, which freed the pectoral fins from their previous role of maintaining buoyancy. With the advent of the swim bladder, the fins of bony fish became less stiff and flexibility was added with the introduction of rays and spines within the fins.
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