
Researchers have discovered a new species of subterranean fish, Gangaichthys indonepalicus, after spotting it in a TikTok video. The colourless, translucent eel, measuring about 4 cm, is the first subterranean fish documented from the Ganges Basin. It was found in a borewell in Bihar, near the India-Nepal border.

The team, which included scientists from the Thackeray Wildlife Foundation and the Zoological Survey of India, manually pumped water from borewells to obtain specimens. The first specimen died after pumping about 2,000 litres of water. An intact specimen was found after an additional 500 litres. Micro-CT scanning and genetic analysis confirmed it as a new genus, Gangaichthys, in the earthworm eel family Chaudhuriidae.
The species name indonepalicus reflects its distribution across the India-Nepal border. Co-author Ishan Agarwal noted the discovery highlights how little is known about subterranean habitats in India, calling for further exploration.
Both discoverwildlife.com and popsci.com provide neutral, factual reporting on the discovery. The coverage is uniform straight reporting, with no discernible editorial slant. Both outlets lead with the novelty of the discovery and the role of the TikTok video, and they include the same key details: the species' size, habitat, and the challenges of collection. The only minor difference is that discoverwildlife.com includes more contextual information about other subterranean life and Indian wildlife, while popsci.com frames the story more tightly around the social media angle. The measured takeaway is that this discovery underscores the vast unexplored biodiversity in India's subterranean ecosystems, and further surveys in the Gangetic basin are likely to yield additional new species.
Coverage: 2 sources, 2 neutral
Sources (2): discoverwildlife.com (neutral report), popsci.com (neutral report)
This story was synthesised by AI from the 2 sources linked above. Methodology and corrections.
Updated: this story now draws on 2 sources.