hypogean species

Hypogean species are animals that live exclusively in underground environments such as caves, tunnels, and subterranean waters. They have adapted to low-light or no-light conditions, often exhibiting features like reduced or absent eyesight, specialized senses, and slow metabolism. These adaptations help them survive in a stable, dark habitat with limited food sources and nutrients. Examples include certain fish, insects, and crustaceans found only in underground ecosystems. Understanding hypogean species highlights the unique biodiversity of subterranean habitats and their importance in ecological research and conservation.