Why imperfection could be key to Turing patterns in nature

Many Turing mechanism models yield too-perfect patterns; varying cell sizes vastly improves the results. A mixture of two types of pigment-producing cells undergoes diffusiophoretic transport to self-assemble into a hexagonal pattern. Credit: Siamak Mirfendereski and Ankur Gupta/CU Boulder A mixture of two types of pigment-producing cells undergoes diffusiophoretic transport…