My career in marine biology began examining "what" and "which" events occurs in the biology of species, studying fishery and biological aspects of elasmobranchs. My current research focuses on understanding "how" the structures of biological systems work, and the impact of organism performance on the functioning of ecosystems, using tools such as functional morphology, ecomorphology, biomechanics and kinematics. I got my Master in Science in Marine Resource Management analyzing feeding ecomorphology of soft bottom fishes. My doctoral thesis answered not only how structures work, but the "why" are there morphological differentiation between the skulls of male California sea lions (Zalophus californianus), along both coasts of the Baja California Peninsula. This study expanded the knowledge of the evolutionary history of this species, enabling the development of theories to help understand the processes of phenotypic diversity and its mechanisms of adaptation to different environmental situations.