Scientists are dressing pigs in clothes and burying them in Mexico. Why?

Scientists are dressing pigs in clothes and burying them in Mexico. Why?

The families of Mexico’s more than 130,000 missing are often left to search for their loved ones alone, with little support from authorities. But now, scientists are testing new technologies they hope will make a change. A collaboration between Mexican and British universities, federal and local researchers are developing mapping tools to locate clandestine graves - using buried pigs.