Although feeding has not yet been thoroughly studied in many vertebrate taxa, and different conceptual and methodological approaches make a synthesis difficult, the aim of this volume is to provide a comprehensive overview of the feeding design in aquatic and terrestrial vertebrates with a detailed description of its functional properties. The book focuses on the constant interaction between function and form, behaviour and morphology in the course of evolution of the feeding apparatus and feeding mechanism in both a complementary and basic manner in relation to survival, interspecific competition, adaptation to environmental changes and adaptive radiation. Special emphasis is given to the quantification of the observational and experimental data on the morphology and biomechanics of the feeding design and its elements - jaws, teeth, hyoidean apparatus and tongue in order to allow the present and further comparisons in an evolutionary perspective.