Spring 2026 Biology Seminar Series Speaker – Peter Girguis, Harvard University

His lab studies how marine organisms “make a living” in the ocean, especially in the deep sea and extreme environments. For example, he studies the novel biochemical capabilities of marine microbes that live within animals (symbiosis) or live at Earth’s most extreme environments, such as hydrothermal vents. He also studies how animals have adapted to these extreme environments and how they respond to our changing world. To this end, his lab applies a diversity of molecular and geochemical techniques to examine these physiological and biochemical adaptations in natural systems or laboratory simulations. His lab is also known for developing novel technologies such as microbial fuel cells and underwater sensors that advance our understanding of these organisms. He is also committed to making marine science more inclusive and works to foster deeper engagement between scientists, social scientists, artists, and policymakers.