Droppings divulge more information about animals than other traces-claw marks, paw prints, bite marks, and such-and are an animal byproduct that is easy to gather in the wild.
黃美秀指出，相較於動物的其他痕跡──爪痕、腳印、進食痕跡，排遺中透露出的訊息最多，也是較容易在野外收集的動物「副產品」。