每天早上，它们从广阔优美的波浪中起飞，飞到附近的田野，全力以赴地吃着收获者遗留下来的玉米和蚯蚓及其它无脊椎动物。
Each morning they rise up in vast, graceful waves and fly to fields nearby, where they spend their days assiduously feeding on waste corn the harvesters missed and earthworms and other invertebrates.
马科斯和卡巴约发现总的来说，描述一种新发现的巴西产的脊椎动物（比如一种小鸟）需要大约122,000美元，这是描述新发现的非昆虫类的无脊椎动物（比如一种蚯蚓）所需费用的两倍。
Marques and Carbayo found that all told, it costs about $122, 000 to describe a new Brazilian vertebrate, such as a bird—twice the price of a new noninsect invertebrate, such as a worm.
在南非勘察某自然保护区的一个科学家小组，发现了以前从未有记录的十八个无脊椎动物物种，其中包括有蜘蛛、蜗牛、千足虫、蚯蚓以及蜈蚣。
Scientists surveying a nature reserve in South Africa have discovered 18 previously unrecorded species of invertebrates, including spiders, snails, millipedes, earthworms and centipedes.
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