Sunday, August 31, 2008
STARFISH
Starfish are known as sea stars and not considered as fish despite their name.
They are able to be found in the deep blue seas and shallow waters.
The five arms of the star fish are its feature. It often appeared spiky on surface
A starfish has two stomachs which make them so special. One called the cardiac stomach which
helps the starfish to engulf food outside its body and then comeback to the pyloric stomach.
The tube feet play an important role in helping the starfish to procure its food. They are used to open up the oysters or clams. Then the stomach is extended into the shell to pull the food inside.
Have you ever tried locating the mouth of a starfish? It is located on the ventral surface, underneath the upper surface. There is around 1800 number of species of starfish.
Everyone can easily find starfish in all oceans around the world. Mostly found in the
Tropical area of the Indo-Pacific. They also live in the coral reefs and sea beds.
Starfish can never be found in fresh water.
The starfish have microscopic eyes at the end of each arm; this enables the starfish to view movement and differentiate between light and dark.
Most starfish have a spiky surface as a means of protection. The crown-of-thorns starfish is known for its thorny spines that are present all over the body.
^ Crown Of Thorn starfish
There are many patterns can be seen on a starfish! Most starfish have bright colours and stripes.
If a starfish loses its arm, it is capable of producing another!
Sources :
· info - Buzzle
· video - Youtube
· image - CuriousAnimals
