The study of digestive morphology and physiology in mammals is a fascinating field that explores how different species have adapted their digestive systems to their diets and ecological niches.

PBS Nova spoke with physiology experts and competitors to find out what happens to the human body during intense speed eating competitions. It turns out these “athletes” train their stomachs ...

A continuation of the basic knowledge of human structure and function. The topics treated are cardiovascular system, lymphatic system, respiratory system, endocrine system, digestive system, ...