Same an in humans... The spine.
However, you questions says 'ON A FISH' so you may be thinking of the fin on a shark?
In that case it is called the dorsal fin.
Another name for devils backbone is Backbone Mountain.
another name for backbone is vertebrae column
The spine.
vertabre
your spine
It is a backbone.
vertebrate
All fish have a backbone and a skull.
Yes, fish do have a backbone. They are vertebrates, which means they have a spinal column made up of individual vertebrae that protect their spinal cord. This backbone provides support and structure for their body.
a fish with a backbone
Finfish is another name for fish.
No it is a vertebrate. Fish have a backbone. Invertebrates do not have a backbone.