Well, because they have gills, not lungs, I suppose
Most tropical fish live in the ocean, but some do live in freshwater.
Some do- salmon spawn in fresh water but live mostly in the ocean. Most fish live in either one or the other, not both.
Fish live in water.
One of the most common fish that can live in both salt and fresh water is a salmon:)
A fish! Fish are the only animals with gills and most live in water.
most species of rays are live in coastal water,and few in deep water(about 3000 mtrs)
no, can you live under water for months with no oxygen. then think about fish they can live with out water.
Salmon are fish. All fish live in water.
Well, because they have gills, not lungs, I suppose
the salt water hatchet fish live in salt water!!!
No fish live in wells.
fish are fish.... that live in water..