Scott Egan, assistant professor of biosciences at Rice University and a Rice faculty scholar at the Mexico Center, discusses the impact a continuous border wall can have on the natural populations of plants and animals that exists in the U.S.-Mexico border regions. For updated information and analysis on Mexico's July 1 election and the results at the federal, state and local level, visit the Mexico Center's Election Resource page. For comments and questions please email mexicocenter@rice.edu