A farm in Zhangqiu district in Jinan, in China’s Henan province, has 300 million American cockroaches munching on 15 tonnes of food waste a day…Cockroaches are not afraid of anything soft, hard, sour, sweet, bitter, or spicy, said Yanrong, according to South China Morning Post. Also, American cockroaches are a bigger variant and can grow around 4 centimeters long and a life cycle of around 700 days – apt for forming this insect cleaning army. These insects are also used in traditional Chinese medicine and are known to heal wounds and repair tissue.
