Caves are home to some of the most mysterious and unusual creatures on Earth. Many cave-dwelling animals, like blind cavefish, have evolved without eyesight, relying instead on heightened senses of touch and smell. Bats use echolocation to navigate pitch-black tunnels, while giant cave spiders wait patiently for unsuspecting prey.
Other cave dwellers, like salamanders and glow worms, have adapted to low-light environments, making these ecosystems some of the most fascinating and least explored on the planet.