"We've just added several Bay Scallops to our invertebrate wall in the aquatics center. If you stay and watch for a few minutes you can see these filter feeders slowly open up, revealing up to a hundred small, brilliantly blue simple eyes! They can sense only light and shadow, so when you move they will close up quickly - or "swim" away by opening and closing their valves!"
Content and Video credit: Brittany Lokcu, GPZ Aquatics
