The Arnold Lab is a diverse group of ecosystem biologists, bioinformaticians, biomedical scientists, wildlife ecologists, and microbiologists that study how microbiomes, the collection of microbes which inhabit the body, positively influence health and how they contribute to disease. As we are interested broadly in how microbiomes contribute to physiology and pathophysiology, we have applied this in human disease, biomedical lab animal systems as well as how microbiomes may help preserve wild animal populations. We have particular interest in how microbiomes influence host behavior and stress.