Complex sentence: In modern times, the extent of dog consumption in China varies by region, most prevalent in Guangdong, Yunnan and Guangxi, as well as the northern provinces of Heilongjiang, Jilin and Liaoning.
Split into simpler sentences: In modern times, the extent of dog consumption in China varies by region. It is most prevalent in Guangdong, Yunnan and Guangxi, as well as the northern provinces of Heilongjiang, Jilin and Liaoning.