Math and Art: Differences and Similarities

Mariana Soffer has made a list of some differences between math and art. In a contrarian mood, I will go through the points in this list and discuss the similarities between math and art.

Everything Evolves

What is evolution? There are three main components to evolution: variation, heredity, and differential fitness. The best definition I have seen is in Robert Brandon’s Concepts and Methods in Evolutionary Biology:
The following three statements are crucial components of the Darwinian (or neo-Darwinian) theory of evolution:

Variation: There is (significant) variation in morphological, physiological and behavioral traits [...]