Scientists Identify New Alabama Cavefish Genus in 1 Bobcat Cave as DNA Reveals Separate Lineages
Updated
Updated · Futura · Aug 10
Scientists Identify New Alabama Cavefish Genus in 1 Bobcat Cave as DNA Reveals Separate Lineages
3 articles · Updated · Futura · Aug 10
Summary
Genetic and anatomical analyses of fish collected from Bobcat Cave in February 2025 confirmed a new blind species, Demogorgonichthys arcanus, distinct enough to warrant its own genus.
Decades of monitoring had missed the pale fish until biologists spotted it under lamplight, then used photographs, measurements and scans to verify unusual head, fin and body features.
DNA testing also showed the species lives alongside Typhlichthys subterraneus but is not closely related, indicating two cavefish lineages evolved separately in the same cave.
Bobcat Cave is the only place where scientists have observed the fish so far, making it a candidate for one of the world's rarest fish despite protections tied to other threatened species.
Groundwater around fast-growing Huntsville remains a key risk because urbanization and pollutants can seep into the cave system, while researchers still are studying the fish's diet with nonlethal stomach scans.