 The 1950s brought about not only a change in the approach of morphological studies, resulting in the development of evolutionary morphology in the form of theoretical questions, and a resurgence of interest in the field.High-speed cinematography and x-ray cinematography began to allow for observations of movements of parts while electromyography allowed for observation of the integration of muscle activities.Together, these methodologies allowed morphologists to better delve into the intricacies of their study.