Different names.
a bird: Many different types. A bear.
there are no "main" types of fish. There are just different types.
No, they are to different types of fish and it would be impossible to breed them.
yes there are different types of gills in different types of fishes.
because the different types of fish need the different types of water, to find more about this I would use google search engine.Hope it helps:)
there are over 1 million different types of fish and more
212 different types of fresh wate fish
It looks like a star. Different types have different shapes, but you would recognize all of them a stars.
Some Different Types Of Fish Are Trout,Bass,Pike,Walleye and sharks.
There are over 30,000 species of fish.
tiny fish
different types of fish