Think there are no corals for a coldwater reef aquarium? Ron Shimek demands you think again!
These Red Sea Urchins are animals. Not a surprise! :). However, when abundant the urchins also become a substrate. And when their total surface area is calculated, it becomes apparent they can actually create a considerable area.
Dr. Shimek seeks to learn the secrets of whelks placing their eggs in the vicinity of anemones in the Northeast Pacific.