The skin is a multi-layered organ, often displaying associated structures, that establishes a
protective interface between the organism and the surrounding environment. In mammals,
the skin provides a physical and immune barrier, while contributing to thermoregulation and
water balance. Within cetaceans, the archetypal mammalian skin was drastically reshaped
and remodeled, emerging as a striking feature of their successful adaptation to a fully
aquatic lifestyle. In fact, cetacean skin is extremely thick, displays a high cellular turnover …