New Waves: The Research Newsletter of the Texas Water Resources Institute2010-02-152010-02-151990http://hdl.handle.net/1969.3/21523pg. 7This short article discusses how researchers at the Southwest Texas State University are studying endangered species that inhabit Comal Springs. They are trying to save the species if the springs go dry.freshwater organismsfreshwater fishspring streamsSan Marcos salamanderSan Marcos fountain darterrare speciesendangered speciesArticle