Sighted and blind fish share the same cave in Tamaulipas — and scientists want to know why
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A new study of an underground lake in the mountains of Tamaulipas has documented an exceptionally rare cave ecosystem — one in which Mexican tetra fish with full vision live alongside close relatives that are completely blind.
The site, Caballo Moro, is located in a limestone cave system in the Sierra de Guatemala, just south of the El Cielo Biosphere Reserve in the northern Mexican state of Tamaulipas.
The limestone cave Caballo Moro that served as the study site. (Study co-author R Kellermeyer
The site, Caballo Moro, is located in a limestone cave system in the Sierra de Guatemala, just south of the El Cielo Biosphere Reserve in the northern Mexican state of Tamaulipas.
The limestone cave Caballo Moro that served as the study site. (Study co-author R Kellermeyer
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