FISHES
Fishes (Pisces) are cold-blooded vertebrate animals of the groups that live almost exclusively in the water and breathing with the help of the gills.
Especially good sense which is developed in fishes is a sense sideline. Around half of all vertebrates are fishes, the oldest known fossils are 450 million years old. Today the world there are about 25,000 species.
No comments:
Post a Comment