This book presents recent researchresults relating to applications of nonlinear dynamics, focusing specificallyon four topics of wide interest: heart dynamics, DNA/RNA, cell mobility, andproteins. The book derives from the First BCAM Workshop on Nonlinear Dynamicsin Biological Systems, held in June 2014 at the Basque Center of AppliedMathematics (BCAM). At this international meeting, researchers from differentbut complementary backgrounds, including molecular dynamics, physical chemistry,bio-informatics and biophysics, presented their most recent results anddiscussed the future direction of their studies using theoretical, mathematicalmodeling and experimental approaches. Such was the level of interest stimulatedthat the decision was taken to produce this publication, with the organizers ofthe event acting as editors. All of the contributing authors are researchers workingon diverse biological problems that can be approached using nonlinear dynamics.The book will appeal especially to applied mathematicians, biophysicists, andcomputational biologists.