Cave-dwelling organisms, also known as troglobites, are species that have adapted to live in the dark, underground environments of caves. These organisms often exhibit unique features such as loss of pigmentation and eyesight, as these traits are less necessary in complete darkness. Examples include certain species of fish, insects, and amphibians. Many cave-dwelling organisms rely on specialized diets, often feeding on organic matter that washes into caves or on other cave inhabitants. Their adaptations allow them to thrive in nutrient-poor conditions, making them important for understanding ecosystems and biodiversity in subterranean habitats.