eDNA is a molecular conservation tech tool that can be used to detect species presence in samples taken directly from the environment. To date, eDNA has been used for species detection, biomass estimation, diet analysis, reconstruction of past flora and fauna, and wildlife disease detection. Still a relatively new area of conservation tech, eDNA is in a phase of rapid innovation and growth, with improved ease of use and more accessibility allowing this technology to find new uses in the field and lab.