27/08/2026
A TikTok video has led scientists to the first known subterranean fish from the Gangetic Basin in Bihar, India.
Researchers encountered the video in 2024. It showed a small, nearly transparent fish emerging from a borewell somewhere near the IndiaâNepal border. Because no groundwater-adapted fish had previously been documented from this enormous alluvial plain, scientists began searching wells in northern Bihar.
The investigation was difficult. The team examined more than fifteen borewells and pumped approximately 2,500 litres of groundwater before obtaining three specimensâonly one of which was sufficiently intact for detailed analysis.
Genetic testing, micro-CT imaging and anatomical comparisons showed that the fish represents both a new species and a new genus of earthworm eel: Gangaichthys indonepalicus.
The animal measures approximately four centimetres. Its translucent body, reduced eyes covered by skin, lack of pigmentation and unusual skeletal characteristics appear adapted to life in permanent darkness.
Researchers still do not know its complete geographical range, population size, water-quality requirements or vulnerability to pollution and groundwater extraction. Only three physical specimens have been scientifically documented.
SOURCES
Akshay Khandekar et al., âGangaichthys indonepalicus, a new genus and species of miniature stygobitic earthworm eel,â ZooKeys, August 11, 2026. Peer-reviewed primary research:
https://zookeys.pensoft.net/article/188089/
Pensoft Publishers/EurekAlert, âTikTok video leads to discovery of rare underground eel in India,â August 17, 2026. Participating publisherâs research announcement and scientific images:
https://www.eurekalert.org/news-releases/1139818
Nature, âTikTok video leads to discovery of new underground fish species,â August 22, 2026. Independent specialist summary:
https://www.nature.com/articles/d44151-026-00164-z
Times of India, âA TikTok clip helped scientists discover a new translucent eel living beneath Indiaâs plains,â August 22, 2026. Indian national reporting:
https://timesofindia.indiatimes.com/etimes/animals/a-tiktok-clip-helped-scientists-discover-a-new-translucent-eel-living-beneath-indias-plains/articleshow/133381979.cms
EDITORIAL STATEMENT
Iâm an American living in Norway as a permanent resident and an Associate Professor of photojournalism at OsloMet. Iâm not from this community, so I have relied on the peer-reviewed research, participating scientists and Indian and specialist reporting.
This report was independently prepared and does not represent OsloMet. Linking a source is not an endorsement. Corrections and substantive scientific updates will be clearly labeled and dated.
Any AI-generated accompanying image will be identified as an editorial illustrationânot scientific evidence or a documentary image of the species.
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