Friday, February 8, 2008

Osteichthyes (Bony Fishes)

Domain: Eukarya
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Osteichthyes (Bony Fishes)


















Their habitat:
-41% lives in fresh water.
-58% lives in sea water.
-1% moves between both.
-It is mostly found in the tropics especially the Indo-west Pacific and Indian oceans.


Their predators:
SHARKS:
-Frilled shark
-Porbeagle
-Bull huss
-Shortfin mako



Their preys:
-They may be plant-eaters, meat-eaters, or both.
-For example: annelid worms, marine snails, mussels, clams, squids, crustaceans, insects, birds, amphibians, small mammals, and other fishes.




Their anatomys:
-They have skeletons which are must stiffer than sharks.
-Have an excellent sense of smell and vision.
-They also have a swim bladder to control their depth in water or in other words to help them float.

















More informations:
-The closest common ancestor of the osteichthyes are tetrapods.
-They are the most various groups of vertebrates, over 29,000 species. Which makes them the largest class existing today.
-They do not have fin spines.
-They also have operculum, which helps them breathe without having to swim.
-Unlike most fish, they are able to see in colors.

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