From hiding to parasitism

At the water hazard on the beaches, we can always discover lots of beautiful “flowers” blooming there. It is actually a kind of coelenterate called “sea anemone”, and a sort of beautiful sea shell called “l(fā)adder shell” is parasite at its root, and feeds on the tissues of sea anemone. Therefore, on the beaches live sea anemones, you should be careful to look for the traces of ladder shells. At some seaside of Qinhuangdao in Hebei Province, you can always find broadband ladder shells with delicate appearances on the beaches.