By Balaji Vijayakrishnan Estimated read time: 6–7 minutes Deep below Asia's surface flows a world few hobbyists ever imagine. Once considered biological curiosities, subterranean fishes are now being discovered at an accelerating pace, with new species turning up in caves and underground habitats across India, China, and Indonesia. For anyone fascinated by oddballs, these fish represent the ultimate specialists — animals shaped entirely by darkness. Barbodes klapanunggalensis