On land, we humans use latex, lotion and body friction to deal with skin problems. Under the waves, some dolphins may also have a skin treatment The researchers investigated why some Indo Pacific bottlenose dolphins rub on some corals, which seems to be a way to treat skin diseases
Angela ziltener, a wildlife biologist at the University of Zurich, observed dolphins rubbing against specific corals in the North Red Sea near Egypt. Her first observation dates back to 13 years ago. She said in a statement on Thursday: "I've never seen such a description of rubbing coral before. It's clear that dolphins clearly know what kind of coral they want to use."
The University of Zurich shared a video of dolphins visiting their underwater skin "clinic".
Ziltener is the co lead author of a study on dolphin behavior published this week in iscence. The study combines observations of dolphins with an investigation of the characteristics of the specific corals they use.
Ziltener used her diving skills to approach the dolphins and sampled the coral they deliberately came into contact with. The team found 17 active metabolites with antibacterial, antioxidant, hormonal and toxic activities in the mucus released by corals in contact with dolphins and a marine sponge. "The discovery of these bioactive compounds led the team to believe that the mucus of corals and sponges is playing a role in regulating the microbiome of dolphin skin and treating infections," the University said.
Coral reefs are an important habitat for dolphins. Ziltener describes them as bedrooms and playgrounds. Observations show that dolphins often rub themselves with coral between naps. "It's almost like they're taking a bath. They clean themselves before going to bed or getting up."
Researchers hope to learn more about which corals dolphins use to treat which diseases or body parts. The ability to continue the study depends in part on the dolphin population's ability to remain safe from human tourists. The conservation organization dophin watch alliance, founded by ziltener, is committed to educating divers on how to interact with marine animals with respect.
In addition to the rich social life, complex language and love for SpongeBob, it seems that skin care procedures are another common ground between dolphins and humans.