By Gina Baldivieso Cochabamba, Bolivia, Jun 4 (EFE).- He uses tires from bicycles or motorized vehicles, transforming them into dinosaurs, armadillos and even the fearsome xenomorph from the film “Alien.” Sandro Arellano is creating the rubber sculptures to raise the public’s environmental awareness, especially among the younger generations. Based in the central Bolivian city of …