Our laboratory studies the three-dimensional functional morphology of the musculoskeletal system, the evolution and development of the skull and vertebrae, and the reconstruction of locomotion in ancient vertebrates. We are morphologically examining the joints of the mandible and limbs, the fins of sarcopterygians, the mammalian skull, and the vertebrae of birds. Starting with macroscopic dissections of a large number of animal dead bodies, we have been working on the evolutionary history of animal morphology using macroscopic functional morphology methods such as three-dimensional image analysis and the data collecting X-ray videos. We have also quantitatively examined the relationships between organs and body size in the digestive and circulatory systems. Our research begins with considering the evolutionary significance of the diverse shapes seen in vertebrates.