If it's any consolation, South African food scientists did not find horse meat in the beef burgers and sausages they tested. What they did find, however, was water buffalo, donkey, and goat meat. A study published by three professors at Stellenbosch University found that 99 of 139 samples contained species not declared in the product label, with the highest incidence in sausages, burger patties, and deli meats. The study also found undeclared pork in 37% of products tested and chicken in 23%. The study's co-author says the "commonplace" mislabeling "poses economic, religious, ethical, and health impacts."