I am actively involved in paleontological excavations spanning Mongolia, Kenya, and northern Okayama Prefecture, while simultaneously conducting meticulous paleoenvironmental reconstructions based on robust geological investigations. Moreover, my endeavors extend to the comprehensive reconstruction of the entire ecological framework of the relevant time periods, encompassing small vertebrates, insects, and invertebrates, achieved through the discernment of the intricate interconnections between fossils and their corresponding stratigraphic contexts. Furthermore, our team enthusiastically engages in lifelong learning endeavors, exemplified by organizing exhibitions, workshops, and lectures that showcase esteemed fossil specimens.

How can the population ｓustain in wetlands where the environment spatially and temporally fluctuates? We study the ecology of amphibians and reptiles in wetlands as target areas. Also, we study the anthropogenic impacts, such as paddy improvement and abandonment, on those populations from the viewpoint of conservation biology as well as ecology and evolution.

My research is focused on the diversification and evolution of flowering plants, mainly Cyperaceae (sedges family), ranged from Japan to the Himalayas through China. Cyperaceae is one of the most diversified group in flowering plants, and is suitable for studies of plant systematic and evolution. I have conducted taxonomic, phylogenetic and cytological studies of Cyperaceae.

Bone histology is the study of bone function and growth by sectioning bones into thin slices to visualize internal tissues. This technique has proven instrumental in uncovering the physiology and ecology of extinct animals, providing insights into their growth rate, age, metabolism, and degree of aquatic adaptation — factors that were previously challenging to reconstruct. My research focuses on employing bone histology to explore the life and adaptive processes of large vertebrates, such as dinosaurs and mammals. Specifically, I aim to uncover what factors influenced these creatures to evolve into giants or diminutive forms and how terrestrial vertebrates altered their physiology and bone structure to successfully readapt to aquatic environments.

I have interests in parental care and sexual conflicts over reproduction in teleost fishes. My goal is to understand social relationship among individuals by approaching the field researches and observations in lab conditions, from evorutionary views. In the resent years, I also conduct some field works to examine a composition of food-webs in aquatic ecosystem and evaluate the relationships between biodiversity of aquatic animals (e.g. dragonflies) and their local and landscape habitats.

Now that Covid19 has settled down, the diversification of inbound customers will progress. Japan’s tourist areas will be required to be tourist areas that respond to diverse values such as religious diversity such as Halal, veganism, and LGBTQ. It means that each tourist area is required to select the value that is sought and to work on regional development that makes use of the strengths of the area.
Tourism has a broad base and a huge and growing market all over the world. In addition, it is an attractive industry that can realize tourism that benefits all people involved in tourism, including the industry, the business operators, and tourists.
I am interested in researching ways to help realize such a tourist area.

In response to the crisis of social, cultural, and economic sustainability in rural areas caused by declining birthrates and aging populations, the regional management movement, in which industry, academia, government, and the private sector collaborate to solve problems, has attracted attention.
In this laboratory, we support the construction of marketing databases for tourism marketing organizations that practice regional management, while analyzing the information obtained from these databases and examining effective regional management strategies.
There are two topics in this laboratory,
(1) Research on the relationships and roles among entities in effectively functioning regional management,
(2) Research on the construction of a marketing database that contributes to the formulation of regional management strategies and on evaluation indices for regional management.

We study on the biological characteristics of fish parasites with the aim of disease control. Also, many fish parasites in seafoods have been subject to complaints by comsumers. However, fish parasites normally live in wild environments, and it is crucial to discriminate between harmful and harmless for humans.
To improve the quality of farmed fishes, we try to feed grape pomace, effluent from winemaking, on the immunity and health condition in cultured fishes.

Smooth muscle cells are major components of the organ walls of organs, such as artery, gastrointestinal tract, bladder and trachea. Smooth muscle cell motility is highly regulated by nerve and hormonal stimuli. Accumulating lines of evidence suggest that impaired smooth muscle motility is involved in a variety of diseases, such as hypertension, digestive dysfunction, asthma, and dysuria. To elucidate the molecular basis of smooth muscle diseases, and to develop their effective diagnostic and therapeutic strategies, we have been studying the mechanisms that regulate smooth muscle motor function. Meanwhile, we have discovered a protein that regulates smooth muscle contractile function and have elucidated the underlying mechanism by which the protein mediates regulation of smooth muscle motility. We now study the signals in smooth muscle disease.
In parallel with our research on smooth muscle disease, we are assisting in the development of devices and products to improve the quality of life of animals, including pets, and their owners through collaborative research.

Among infectious diseases caused by pathogenic microorganisms such as viruses and bacteria, we are studying zoonoses, which are infectious diseases between animals and humans. In recent years, with the increasing distance between animals and humans and the improvement of diagnostic techniques for pathogenic microorganisms, it has become clear that a variety of zoonoses exist in the world and pose a significant threat to us and human society. Our research contributes to the prevention and control of these zoonotic diseases by clarifying how these pathogenic microorganisms are actually maintained in the field and the degree of risk they pose to humans and animals. We also conduct molecular biological studies using actual pathogens and various types of cultured cells to evaluate pathogenicity and elucidate the mechanisms of pathogen transmission.

Mastication and swallowing are patterned movements that are essential for the vital activities of animals including humans. These movements require coordinated activity of orofacial muscles, and interneurons in the brainstem control the activity of motor neurons in the orofacial motor system. Among brainstem interneurons, we are focusing on cholinergic interneurons and studying their cell morphology, neural circuits, and neurotransmission. By elucidating the neural circuits between interneurons and motor neurons, we aim to gain knowledge that will lead to an understanding of orofacial movement disorders.
We are also studying the histology of the olfactory organ and its center, the olfactory bulb, of urodele amphibians. By comparing the olfactory system between urodelan species, we are investigating the relationship between the adaptation to water and land environments and the olfactory evolution.

Prospective veterinary medicine for farm animals should endeavor to augment productivity by incorporating strategies to combat production maladies, all the while actively contributing to the prevention and containment of infectious diseases. Through a focused emphasis on theriogenology and herd health management, our aim is to undertake research endeavors that elucidate the etiology, mechanisms, and pathogenesis of diseases in both individual animals and populations, with the overarching objective of advancing diagnostic and therapeutic methodologies.

Despite being primarily developed for industrial purposes and not intended for direct human consumption, many chemical substances still come into contact with the human body and organisms in the environment through various pathways, such as water, air, and other environmental factors. Ensuring a safe and secure society requires a thorough evaluation of the toxicity of pharmaceuticals and chemical substances.
In our laboratory, we conduct research on the toxicity of chemical substances through comprehensive gene expression analysis and obtain omics data to elucidate the molecular-level mechanisms, a field known as toxicogenomics. In addition to utilizing omics technology for understanding the inter-organ coordination of energy metabolism in vivo, our research also focuses on elucidating pathological processes in both humans and dogs.

We mainly conduct research related to environmental health. We are working on microorganisms, viruses, contaminants, etc. that exist in water and soil. We also aim to search for useful microorganisms that can contribute to solving environmental problems. We also conduct research using epidemiological and informatic methods.

Changes in the global environments have increased incidence of infectious diseases. Most of these diseases are zoonoses which are transmitted from animals to humans. It is an urgent task to control and prevent of zoonotic disease outbreaks. However, it is not simple and straightforward, since the natural reservoir animals and the transmission routes of the causative agents are not elucidate in all zoonoses. From a glocal perspective, the objective of this project is to forestalling outbreaks of zoonotic infection on the basis of epidemiological investigations in Shikoku.
Host specificity of infectious agents are interested because the mechanism is different for each infectious agent. Adenoviruses are believed to be co-evolved with their specific hosts, and usually infect one particular or several, closely related host species. However, certain bat　adenoviruses exhibited a broad range of in vitro cell tropism. We try to elucidate its host-range determinants.

Veterinary pathology is the study of the causes of animal diseases and the study of their mechanisms. The results revealed by veterinary pathology are returned to clinical practice to help diagnose and treat animal diseases. Although our research targets all kinds of animals other than humans, we also contribute to the human medicine through basic research using laboratory animals.
I have experience in pathological diagnosis in a variety of animals, including companion animals, industrial animals, laboratory animals, wild animals, exotic animals, zoo and aquarium animals, fish, and invertebrates. I aim to identify issues from spontaneous diseases seen in various animals and to conduct research that can be fed back to clinical practice. At the same time, I will develop basic research using experimental pathological methods.

Veterinary pathology is the study and elucidation of the causes of animal disease and the study of their mechanisms. There are varies of animal diseases that are recognized dependinng on the animal species, the porpose of keeping animals and anatomical and physiological charaters of animal specises.
The researchs currently focusing on:
1) Pathological study of cardiac dilation in meerkat aims to elucidate the cause of cardiac dilation with suspecting a relationship with nutrients deficiency such as vitamin E and selenium.
2) Patholocical study of dermal fungus disease in Shiro-hebi (albino of Japanese rat snake) aims to elucidate the cause of the disease.

Food hygiene is expected to more important due to HACCP and export of meat and marine product.
Pneumonia is a common disease in feedlot, and Mycoplasma bovis may be involved. The bacteria occur such as pneumonia, mastitis, and arthritis. Endocarditis, which causes lesions in the heart, is occasionally observed at slaughterhouses (Fig). The researches of adhesive factors for vaccine development leads to a stable supply of meat product.
Enterohemorrhagic Escherichia coli (EHEC, STEC), Salmonella, Campylobacter,which are known to be food poisoning, are tested at the Meat Inspection Center. The study of food microbiology that have attracted attention in recent years, such as Clostridium perfringens and Listeria monocytogenes, makes to improve food safety.

We not only analyze the health status of humans, animals, the environment, and food, but also develop new testing methods to evaluate them.
In recent years, we have been conducting joint research with local governments and companies to develop processing methods to reduce food loss and add value to food ingredients, to evaluate the pharmacokinetics of functional ingredients in foods, and to develop new testing methods for inflammation markers.

We are conducting research to return the relationship between both animals and humans to a more natural state by using low and high frequencies to deter roadkill and railkill as well as beast damage control. The low-frequency “InoDon kumaDon” uses sensors to drive away wild boars, bears, etc. trapped there, and the high-frequency “Hyper Deer Sonic” uses a timer to run for a certain time and is used on deer, birds, etc., with great results. There is no effect on other animals or humans. The high-frequency type is available in vehicle-mounted and installed types, while the low-frequency type is only available in the installed type due to the large diameter of the speaker. However, a portable type, Hyper Deer Sonic, is currently under development and is highly anticipated by people in the forestry and mountaineering industries.