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We currently have videos and information on 14 Cartilaginous fish.

These odd, often translucent cartilaginous fish are typically quite small.

Sharks and rays can be heavier, but they're cartilaginous fish.

Cartilaginous fish, such as sharks also lack a true maxilla.

A similar, but probably non-homologous, structure is found in cartilaginous fishes.

Cartilaginous fishes first appeared by about 395 million years ago, in the middle Devonian.

This is the system currently found in cartilaginous fishes.

Cartilaginous fish (sharks and rays) have a more advanced immune system.

This is the first confirmed case of hybridization among cartilaginous fishes.

IgD was recently found to be present in species from cartilaginous fish to human (probably with the exception of birds).