In the distant past, large herbivores like mastodons dispersed maclura seeds, each the size of an orange in their droppings.
在遥远的过去，像乳齿象这样的大型食草动物播撒着桑橙属植物的种子，在它们的粪便中，每个种子都像橙子那么大。
When they return home, their droppings end up all around their nesting sites, including in nearby ponds.
当它们返回家园时，它们的排泄物会分散在巢穴周围，包括附近的池塘里。
While touring the park, visitors should avoid contact with wild birds, their droppings and feathers.
参观湿地公园期间，请不要接触野鸟、其排泄物及羽毛。
Liverpool, plagued by pigeons that pollute the city center with their droppings, is introducing a mechanical falcon which squawks and flaps its wings in hopes of scaring the pesky birds away.
市中心长期遭鸽粪污染的利物浦市，最近引进一种能够发出嘎嘎叫声，还能拍动翅膀的机械鹰，希望能把麻烦的鸽群吓跑。
Some are eaten by birds and scattered in their droppings.
有些被鸟儿吃掉，散落在它们的粪便里。
Cockroaches and their droppings can trigger an asthma attack.
蟑螂及其粪便可引发哮喘发作。
Avoid touching live poultry or their droppings because they may carry the avian influenza virus.
活家禽或其粪便中可能带有禽流感病毒，应避免接触。
Avoid touching live poultry or their droppings because they may carry the avian influenza virus.
活家禽或其粪便中可能带有禽流感病毒，应避免接触。
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