Henry Maillet is an American explorer, storyteller and environmental advocate based in South America. With the support of a growing network of local and international collaborators, Henry works to identify and elevate the most pressing environmental challenges facing the region by leading interdisciplinary expeditions and multimedia campaigns. Whether using a bespoke macro photography rig to capture the hidden world of insects, or custom DSLR camera traps to photograph the behavior of wild jaguars, Henry excels in leveraging cutting-edge storytelling techniques to reveal the unknown marvels of the natural world. Despite his reliance on technology for storytelling, Henry most enjoys sharing a good story (and yerba mate) around a campfire while on expedition. Henry is an artist-in-residence at the Paraguay Museum of Science (MuCi) and 2024 Explorers Club Impact Grant recipient.

After completing his service as a Peace Corps Volunteer in 2019, Henry co-led a six-month, 1,300km expedition down the Paraguay river in a handcrafted wooden rowboat. With support from The World Wildlife Fund (WWF), his team conducted field interviews on the local impacts of climate change, gathering data spanning the length of the river. During the expedition, they carried out a live social media campaign and facilitated educational engagements in local schools and community centers along the way. In 2021, Henry co-directed Rostros del Río (Faces of the River), a feature-length documentary film based on the expedition which was aired on national television in Paraguay. This life-changing experience led Henry to become a permanent resident of Paraguay, where he continues to live and work today at the intersection of science and storytelling.

Henry holds a Bachelor's degree from the University of Virginia in Leadership and Public Policy. He is fluent in English and Spanish and is working to improve his Guaraní language skills.