Final answer:
Zhoukoudian is a site in China associated with Homo erectus, which has provided a significant number of specimens for the study of human evolution.
Step-by-step explanation:
The species associated with Zhoukoudian, a site in China, is Homo erectus. This location, also known as the Peking Man Site, has yielded a substantial number of specimens of this species, offering valuable insights into the evolution of early humans. The site has been instrumental in the study of human evolution and has helped to shape our understanding of the characteristics and lifestyle of Homo erectus.