橡胶形成的进化目的，以及橡胶之所以分别出现在橡胶树、银胶菊、蒲公英等各种各样的植物中的原因，在于它能黏住食草昆虫的口器。
The evolutionary purpose of rubber, and the reason why it has appeared independently in plants as diverse as trees, guayule and dandelions, is that it gums up the mouthparts of herbivorous insects.
许多昆虫占据着沼泽，以活或死的绳草组织为食，而红翼鸫、麻雀、啮齿动物、兔子和鹿直接以绳草为食。
Numerous insects occupy the marsh, feeding on living or dead cordgrass tissue, and redwing blackbirds, sparrows, rodents, rabbits, and deer feed directly on the cordgrass.
黑熊以树叶、草、树根、水果、浆果、昆虫、鱼，甚至更大的动物为食。
Black bears feed on leaves, herbs. Fruit, berries, insects, fish, and even larger animals.
黑熊以树叶、草、树根、水果、浆果、昆虫、鱼，甚至更大的动物为食。
Black bears feed on leaves, herbs, roots, fruit, berries, insects, fish, and even larger animals.
能食虫的，能捕捉或吸收昆虫的，如瓶子草。
Capable of trapping and absorbing insects, as the pitcher plant.
英语翻译：鸵鸟以草、叶子和昆虫为食。
英语翻译：鸵鸟以草、叶子和昆虫为食。
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