If your asking where it is, its on the Ventral(bottom) side. It is the indent in the starfishes' skin that goes through all of the starfishes' rays (arms). It is called the ambulacral groove.
The function of the ambulacral groove on a starfish is to open the shells of bivalves. It also hold the tubed feet of the starfish.
The Ambulacral Groove
Starfish have thousands of what are called tube feet that look like suction cups. They help them pull apart prey(most often clams or other shelled sea creatures) and to help them move around. The tube feet are located in an area called the abulacral groove/
Groove Phi Groove was created on 1962-10-12.
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
It is called toilet water.
The motto of Groove Phi Groove is '"Through loyalty and integrity, we shall achieve greatness."'.
If you look beneath a starfish you will see a groove under each "arm", from the tip to the "mouth" in the centre. The grooves are lined with "feet", flexible, muscular tubes with suckers at their ends.The starfish can travel by sucking onto any convenient surface with the suckers and dragging themselves along. Actually when a starfish hatches from its egg, it also can swim or drift along in the sea water. You could call that travelling too.
Yes they can
Sure, starfish larvae are planktonic. Adult starfish are not.
Starfish Ancestors
they are starfish that is spiny