Unexplainable The hunt for a lost species
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May 11, 2026 
Benji Jones, Vox science reporter who tracks natural-history mysteries, and Andy Gluesenkamp, conservation biologist and herpetologist who has spent decades searching subterranean amphibians. They explore the vanished Blanco Blind Salamander, the strange blind fauna of the Edwards Aquifer, using eDNA and cave dives to hunt for hidden life and discuss why finding missing species matters for conservation.
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Discovery And Loss Of The Blanco Blind Salamander
- Workers digging for water in the 1950s found four pale, eyeless salamanders near a spring in San Marcos.
- A heron ate most; one specimen eventually ended up preserved at UT Austin as the only known Blanco Blind Salamander sample.
Why Lost Species Aren't Automatically Extinct
- 'Lost species' means we haven't seen an animal for decades and can't assume extinction without exhaustive searches.
- Declaring extinction is severe because proving absence across all potential habitats is practically impossible.
Keep Searching Before Declaring A Species Lost
- Focus search effort instead of writing species off; targeted fieldwork can reveal missing animals.
- Andy Gluesenkamp argues no one's really looked for the Blanco Blind Salamander since 1951, so keep searching.