A fascinating overlap of apparently far fields, Mathematics and Biology, sometimes through Physics (see e.g. mathematical biophysics), sometimes directly through pure mathematics (as it happens in statistics, automata theory or algebraic biology, for example). I suggest this informative wiki entry as a good introduction: Mathematical and theoretical biology. All the info about the activities in the links included below:
The year of Mathematical Biology 2018 is a joint venture of the European Mathematical Society (EMS) and the European Society for Mathematical and Theoretical Biology (ESMTB). The main objectives are to celebrate the huge increase and importance of applications of mathematics to biology and life sciences in the last years and to foster the feedback loop between life sciences and mathematics for years to come. Applications of mathematics in Biology are completely opening new pathways of interactions and they are a huge source of new mathematical problems.