考古学家通过粪便分析来研究古代人类的饮食结构。

The archaeologist used ___scatology to analyze ancient human diets.

这部喜剧电影因为过度依赖低俗的排泄物笑话而受到批评，被认为格调低下。

The comedy film was criticized for relying too much on toilet humor, seen as cheap ___scatology.