Ancient kangaroo teeth hold clues to the role of climate change in ancient extinction

, summarize the main points of the article. Then, in 50-75 words, explain why you think the author wrote this article. What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? What is the author’s purpose? What is the author’s point of view? What is the author’s tone? What is the author’s audience? 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