Scientists have wondered if animals actually have language. It seems clear to anyone who has a dog or cat or who  16     observes animals that there is certainly communication going on. Recent research into different animals is shedding light    17  animal communication.Many animals produce chemicals which send“smell-messages”to other animals of the same  18 . A honeybee, for example, makes over thirty-six different chemicals to communicate  19  information as where to find good flowers. An ant that has found food will take a bit of it and, as it heads back to the anthill, leaves a chemical   20  so that other ants will know where to go for more food. Animals also communicate with  21  language. A dog expresses happiness by wagging its tail,   22  most people know. A honeybee uses a complex “dance” to give other bees the    23  direction to flowers. Like humans, many animals   24  , but we are only beginning to understand the meaning of these sounds. A professor has spent over ten years studying prairie dogs    25  . He carefully records their sounds and observes their   26     and all events that happen at the same time as the sounds. The professor claims that he has  27  about fifty “words,”with which prairie dogs alert each other when they   28  danger.It is clear that animals certainly communicate in various ways. However, the question“Is it language?”is still  29  . Some people think it is. The famous linguist, Noam Chomsky, however, believed that what   30   communication from true language is syntax—that is, the use of grammar and word order, so he believed that only humans can have language.

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