Explore the fascinating world of microbial life in sediments through this comprehensive 29-minute video. Dive deep into the oxic, suboxic, and anoxic zones of sediment, learning about the diverse microorganisms that thrive in each layer and their unique metabolic processes. Discover how aerobic microbes dominate the oxic zone, while anaerobic organisms flourish in the suboxic and anoxic regions. Understand the factors influencing the depth of these zones and the crucial roles played by nitrogen, manganese, iron, sulfur, and methane-cycling microbes in organic matter degradation. Gain insights into the importance of studying methanotrophs for their carbon sink capabilities in the context of global warming. This educational video covers essential topics in geomicrobiology, offering a comprehensive overview of life beneath Earth's surface.