The San Bernardino National Wildlife Refuge marks the convergence of the Chihuahuan and Sonoran deserts in a grassland valley at the base of the Peloncillo ...

#national geographic  #nat geo  #natgeo  #animals  #wildlife  #science  #explore  #discover  #survival  #nature  #culture  #documentary  #perpetual planet nat geo  #Wildlife Disappearing  #San Bernardino National Wildlife  #San Bernardino  #National Wildlife Refuge  #Sonoran desert  #Chihuahuan desert  #grassland valley  #Peloncillo mountains  #black bears  #jaguars  #Border  #border wall  #U.S. border wall  #U.S.-Mexican border  #Arizona  #San Bernardino National Wildlife Refuge  #Wildlife refuge