Applying these ideas to biological examples -

D'Arcy Thomson applied these ideas to biological systems. One way in which he did this was to start with a 'standard' profile of a man's face, and then distort the "paper" on which it was drawn in a specific way to simulate inhomogenous and/or anisotropic growth. Here is the face example from his book:

This idea can be applied to other systems. This picture comes from a recent article in the journal Nature, in which a similar treatment was given to crabs:

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