Theory proposed by Alan Turing explains the patterns of tooth-like scales found on sharks

Tooth-like scales of sharks and chicken feathers are created by the same process and explained by a theory from the legendary code-breaker Alan Turing. His reaction-diffusion theory is widely accepted as the way in which many animals get unique patterns in their feathers, fur, teeth and teeth. It has now been extended to include the development of shark scales - a group of animals that are very distantly related to the other known animals. The findings help explain how the scales of a shark evolved to reduce drag and be more energy efficient while swimming. Scientists believe this patterning could help in designing shark-inspired materials to improve energy efficiency.