China's Tech Firms Are Mapping Pig Faces

China's biggest tech firms want to pamper pigs, too. Alibaba, the e-commerce giant, and JD.com, its rival, are using cameras to track pigs' faces. Alibaba also uses voice-recognition software to monitor their coughs. Many in China are quick to embrace high-tech solutions to just about any problem. A digital revolution has transformed China into a place where nearly anything -- financial services, spicy takeout, manicures and dog grooming, to name a few -- can be summoned with a smartphone.