Sharks are built for speed, and it’s all thanks to their skin. Instead of being smooth like most fish, shark skin is covered in thousands of tiny, tooth-like scales called dermal denticles. These small, textured structures help reduce drag and turbulence in the water, allowing sharks to move faster, quieter, and more efficiently. It’s one of the many reasons they’ve been such successful ocean predators for millions of years. What’s even more fascinating is how this natural design has inspired hu