Use 'cartilaginous' when talking about animals with parts made of cartilage instead of bone.

Animal Anatomy

'Cartilaginous' isn't exclusive to describing fish, it's used for any cartilage-based structure.

Not Just Fish

Emphasize the flexible nature of cartilage compared to bone when using 'cartilaginous.'

Flexibility

Use 'cartilaginous' for parts of the human body where flexibility is needed between bones.

Human Body

The term 'cartilaginous' is often used by healthcare professionals discussing joint health.

Medical Context

'Cartilaginous' may be used when talking about recovery from bone and joint injuries.

Injury Recovery

 Their cartilaginous skeletons are less dense than bony ones and require less energy to move. Large oily livers lend buoyancy to their streamlined bodies, and while trunk muscles of bony fishes attach directly to their skeletons, those of sharks also join to their skin.

Why are sharks so...

 have to dig out the rhizomes which are the underground stems and sort of storage vaults of energy that the grass is produced and they've got a very hard cartilaginous plate in the front of their noses and that helps them to dig and so when there's something