Sea Urchin !
sea shell, sea urchin, small fish and others small sea spices
It's a sea urchin.
it has alot of protein.
The classification of a Sea Urchin is Echinoidea
Go back after you're done at Hollow Bastion. There will be a sea urchin. You have to mess with that to open the shell.
sea urchin
A young sea urchin is called larva, pluteus (free-swimming stage), or juvenile.
A sea urchin does move, but not very frequently.
Yes, starfish do eat sea urchins. They wrap themselves around the sea urchin and evert their stomach against it to dissolve away the flesh and shell. Eventually when the flesh and shell is dissolved by the starfish stomach acids, the starfish eats the inside of the sea urchin.
because the crab needs the sea urchin for protection and the sea urchin needs the crab for food
Ummm...it's the thing from which a sea urchin hatches?