This PAGE


PS-36
Click to return to the Main Page.
Main Page

Click to see the Exhibition Map.
Map

Click to see the List of Exhibits.
Exhibits

Click to see the List of Resources.
Resources

Click to give us your Feedback.
Feedback
Click to return to Science Centre Singapore's Main page.
Click to return to the Main Page.
Primary Science Learning Experience
PS–36   Sea Urchin (Echinoidea)
Click this picture to return to the Listing of Exhibits.

WHAT IS HAPPENING
Sea urchins are common in the warm waters of the Malay Peninsula. They are spiny, hard-shelled, brainless invertebrates living and moving slowly at all depths, along rocky seabeds. With ~700 species worldwide, many urchins have venomous spines for protection, moving about and snaring drifting algae. Their claw-like mouths are located below while their anus is on top. They feed on plant, animal and decaying matter: kelp, algae, dead fish, sponges, mussels and barnacles. They are eaten by crabs, some starfishes, snails, sea otters, some birds, fish and people. The biggest sea urchin is the red sea urchin (Strongylocentratus franciscanus) whose "test" or outer shell can grow to 18cm.
Click to Return to the Top of this Page.
Copyright © 2008 Science Centre Singapore. All Rights Reserved.
Privacy Statement | Terms of Use