Do Dolphins Rub Their Bodies on Corals?

Dolphins would line up and take turns rubbing against particular corals. This was the first time any scientist had ever observed dolphins doing this in the wild. Doctor sultener wondered if the dolphin's unusual behavior could have something to do with the mucus that these corals exude. After rubbing their bodies on them, doctor sultener would notice that these specific corals would leave stains on dolphin's skimbiby.