Some were astonishingly crude and graphic such as " the origin of the monks " ( see picture ) showing three devils excreting a pile of monks .

一些图惊人地粗犷生动，就像“修道士的起源”（见图），三个魔鬼正排泄出一堆修道士。

Because blood is so rich in iron - and because the body has difficulty excreting excess iron - any animal that consumes blood regularly runs a risk of iron overdose .

由于血液富含铁，而身体要排出过量的铁并非易事所以任何经常食用血液的动物都有含铁过量的危险。

Rainforest species feed on an astonishing array of different plants , excreting and dispersing seeds across wide swaths of land , preserving forest growth and speeding regeneration as they go .

雨林中的鸟类依靠数量惊人的多种作物生活，排泄出并在广阔的垄上播撒种子，从而维持了森林生长，加速了林木再生。