Why Mathematical Biology, of all the disciplines in the world?

"...problems--control of epidemics, cell signaling, invading species, cancer treatment--are tremendously complex and influenced by many possible factors. Behaviours may be unpredictable, important factors may be left out or even underestimated, and models are not guaranteed to work the first time. Without careful tracking and analysis of the complex dynamics, we cannot hope to find answers. Research in mathematical biology involves a constant iteration of model development, analysis, prediction, and comparison with data. A common reward for mathematicians is the discovery of new, interesting mathematical problems that are fun to solve."