Chinese paleontologist Hou Xianguang discovered the Chengjiang fossil site in Yunnan, China, a deposit of exceptionally preserved soft-bodied organisms from the early Cambrian period. This site, older than the Burgess Shale by about 10 million years, provided an even earlier window into the Cambrian Explosion. The Chengjiang fossils, like those from the Burgess Shale, have been of immense scientific importance in understanding the early evolution of animal life.

The discovery of the Chengjiang site has provided an even more ancient and detailed record of the earliest complex animal life on Earth, enriching our understanding of the Cambrian Explosion. The strange and wonderful creatures found in these deposits have inspired poets to imagine the earliest days of animal life, a time of incredible evolutionary experimentation. The site's fossils, often exhibiting bizarre and alien forms, have contributed to a sense of wonder and mystery about the origins of the animal kingdom.