Radio Manantial Stereo provides information about the Tehuacán-Cuicatlán Biosphere Reserve, highlighting its rich flora with approximately 2700 identified species, 11% of which are endemic. The reserve's fauna is less documented but includes diverse species of fish, amphibians, reptiles, birds, and mammals. The content was last updated on January 11, 2010, and is copyrighted by Radio Manantial Stereo.