Troglobites are specialized organisms that live exclusively in dark, underground environments, such as caves. These creatures have adapted to their unique habitats, often developing features like loss of eyesight and pigmentation. Common examples of troglobites include certain species of cave fish, insects, and amphibians. These organisms play important roles in their ecosystems, contributing to nutrient cycling and serving as food for other cave-dwelling species. Troglobites are often studied in the field of biospeleology, which focuses on the biology of cave-dwelling organisms and their adaptations to life in complete darkness.