animal-crossing >>fish

fish

The fish point at the animal which excluded amphibians and dolosse consisting of existence amnions biologically among animal group belonging to vertebrate subphylum Vertebrata.
I run underwater life during life and perform gills (gills) breathing and I use (a fin) and move basically.
The surface of a body is covered with a scale (a scale), and there are many things which are a poikilotherm changing temperature by the temperature of the outside world.
In addition, I treat biological fish in the this clause, but there is the case that a meaning does not agree with "the fish" as the general word such as the conversation every day.
"Fish" / "the fish" as the general word says an animal satisfying some condition generally, but the meaning of a word shakes.
I can include whales.
The fish radiate in every hydrosphere environment on the earth, and the habitation area extends to the many divergences from a pole level, the marine outer layer to the depths, the again inland fresh water area from the tropical zone.
As for the habits and the form, I am really various.
Number of the kinds 20,000 of the whole fish amount to nearly 50000000-30000 and occupy more than half of the whole vertebrate.