"The crucial question is not whether some animals use tools and communicate with each other. They do. The crucial question stems from the fact that there's a huge gap between humans and other animals when it comes to language and tool use."
"To the extent that some animals communicate, they do so in a very simple way that lacks syntax and grammar, two hallmarks of language. Humans, on the other hand, lead lives that overflow with language."
"We know and use thousands of words every day. We easily add new words to our vocabulary—and some of us speak more than one language. Humans use language to ask questions."
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