cave dwelling fish Archives

Moved by religion: Mexican cavefish develop resistance to toxin

COLLEGE STATION, Nov. 4, 2010 — A centuries-old religious ceremony of an indigenous people in southern Mexico has led to small evolutionary changes in a local species of fish, according to researchers from Texas A&M University.
Since before th…

Adapting to darkness: How behavioral and genetic changes helped cavefish survive extreme environment

University of Maryland biologists have identified how changes in both behavior and genetics led to the evolution of the Mexican blind cavefish (Astyanax mexicanus) from its sighted, surface-dwelling ancestor. In research published in the August 12…