Fractals are a fascinating type of pattern for mathematics nerds, with their repeating, artificial-looking structures. Now, scientists have discovered the first known fractal protein – and it seems to be an evolutionary accident.Fractals are tricky to define, even for mathematicians, but generally speaking they’re geometric shapes that are made up of smaller structures that themselves resemble the whole. In practice, that means that if you zoom in on part of a fractal, you’ll see a similar struc...