Why can't giraffes reach the height of sauropods?

Exploring the relationship between animal body size and various influencing factors, this book delves into both external physical elements, such as air pressure and gravity, and internal physiological aspects, including circulatory strength and hemoglobin's oxygen affinity. It raises intriguing questions about the evolution of size, contrasting modern animals with ancient dinosaurs, and examines how changes in these factors over the last 100 million years have affected animal development and height.