Nature has given us some amazing ma

Nature has given us some amazing materials. There’s wood: a material so strong and you can use it for everything from making paper to building houses. There’s also wool, whose insulation is so effective that it lets sheep stand outside in the snow all winter. Or how about skin: a material that will repair itself automatically and often completely invisibly in only a matter of days? Truly incredible though these materials are far from perfect for every application, especially in the modern world where the challenges we face are one’s nature could never have anticipated. That’s why we now rely on synthetic materials such as Kevlar.