Bottlenose dolphin

Bruno ..hope this answers your question :) Dolphin’s unique skin gives them all kinds of advantages. To start, while their epidermis is no tougher than ours, it is about 10 to 20 times thicker than any land animal. It also grows about nine times faster than ours. An entire layer of skin is replaced every two hours. This rapid skin regeneration helps to keep dolphins smooth, silky, and hydrodynamic. Dolphins also have microscopic ripples in their skin, which help them travel faster through the water and prevent parasites from grabbing hold. But the real secret of why dolphins are so clean is that they secrete a special gel, which resists the mucus that barnacles and their ilk cling on with. So dolphins are covered in some sort of natural glue solvent. Even if something does find a way to latch on, this dolphin grease also contains enzymes that attack parasites.

It most certainly was Mark , i would do it again in a heartbeat ..oh and if i didn't have real life and cash up my sleeve..! Wooops yes of course ..changed now Martin :)