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Stripe patterns are commonly seen in nature—for instance, birds and fish move in coordinated flocks and schools, fingerprints form unique designs, and zebras can be identified by their distinctive ...

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 zebra’s ...