swim bladder is what helps the fish stay afloat without the swim bladder a fish would simply sink duhhh
swim bladder.
swim bladder.
swim bladder
so they can release gas out
That would be the swim bladder.
The Osteichthyes is evolved from lungs of early bony fish. The fish have many types of evolved.
to move up and down in water
to move up and down in water
Swim bladder
The swim bladder keeps the fish upright in water.
Ray a bony fish following type :- Lateral view of Black Labeo (Carp) in spirit Carp skeleton Fish swim bladder in spirit
swim bladder.