(read more). Alec Baldwin death hoax spreads on Facebook. Rumors of the actorâs alleged demise gained traction on Saturday after a â R.I.P. Alec Baldwin â Facebook page attracted nearly one million of âlikesâ.
These include tropical fish, coldwater fish, marine fish and freshwater fish. Tropical Fish. These are the fish that live in either freshwater or saltwater but they need warm or tropical medium or temperature to thrive. Many types of tropical fish are popular aquarium fish because of their bright colors.
Osteichthyes. Class Osteichthyes (the bony fish) is the largest class of vertebrates with over 20,000 species. The total numbers of fishes exceed that of all other kinds of vertebrates combined.This is not surprising considering four fifths of the earth's surface is covered with water.steichthyes. Class Osteichthyes (the bony fish) is the largest class of vertebrates with over 20,000 species. The total numbers of fishes exceed that of all other kinds of vertebrates combined.