Sharkskin

Shark skin is unique and highly specialized. It has a rough texture due to tiny, tooth-like structures called dermal denticles. These denticles help reduce drag as sharks swim, allowing them to glide smoothly through the water. The skin is also tough and provides protection against abrasions and parasites. Additionally, shark skin can vary in color and pattern, often adapting to their environment for camouflage. This remarkable structure has inspired biomimetic designs in various industries, including materials science and textiles.