Researchers Use Multi-material 3D Printing to Fabricate the First Biomimetic Shark Skin | Biomimicry | Scoop.it

"Scientists have been trying to unlock the secrets of shark skin for more than 50 years. The key to sharks' hydrodynamic prowess lies in how the rigid, tooth-like structures that coat their flexible skin change the flow of water as sharks swim forward – but attempts to quantify this effect have fallen short. After all, it's tough to fabricate a material that closely mimics shark skin, a marvel of Nature honed over the 400 million years that sharks have sleuthed the seas."