他们是清洁工，以粪和另外的腐烂有机物为食，而且在保持草原清洁方面扮演了一个举足轻重的角色。
They are scavengers, which feed on dung and other decaying organic matter, and play an invaluable role in keeping the veld clean.
食粪症是犬只摄食犬类粪便或其他动物粪便的一种行为异常。
Coprophagia is the ingestion by a dog of feces, either its own or those of another dog or animal.
这种做法被称为食粪行为，是必要的仓鼠，以取得适当的营养物质的食物。
This practice is called coprophagy and is necessary for the hamster to obtain the proper nutrients from its food.
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