An eel is probably the most common.
a fish tail and gills
Scales, gills, fins, tail, streamlined, cold blooded
It is beginning the process known as 'metamorphosis' - the tail is absorbed, and the legs start to grow. At the same time, the tadpoles gills are changed into lungs - in preparation for a semi-aquatic life.
Dorsal fin, gills, tail.
Ontogeny recapitulates phylogeny
Gills for breathing Eyes to see Tail to swim
mouth or gills
They would wear a bra that would match the color of the gills on there tail. XD
Tadpoles have gills, a tail, and a suction cup like mouth.
There are several species of fish that are commonly called "cod". They all have a caudal (tail) fin.
They are classified as FISH. See the related link for more information.
they have gills,and a long flat tail to help them swim before they become frogs or toads. they have gills so they can breath in the water....