most likely the urchin is realy stressed out or sick if it is stressed out it could be a number of reasons Water qaulity is most likely the cause most likely the urchin is realy stressed out or sick if it is stressed out it could be a number of reasons Water qaulity is most likely the cause
no
Spines of the sea urchin can cause injuries of the skin.
they are venomous
sea urchin
I think it is the sea urchin although i might be wrong. - you are correct, a sea urchin is in the Echinodermata phylum as the sea star.
A sea urchin's body is covered in sharp spines.
Yes, the uric acid decomposes the calcium structure the spines.
sea anemones have stinging tentacles, and sea urchins have spines.
So that the sea urchin can protect itself from is enemies, it also has venomous spines. They also use their spines to kill other sea ceatures, so they can eat them.
It's a sea urchin.
So that the sea urchin can protect itself from is enemies, it also has venomous spines. They also use their spines to kill other sea ceatures, so they can eat them.
Sea urchins are not fish.You see sea urchins are echinoids because of there spines and they have some parasites.
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