Waring Rob The Perfect Swarm Издательство: Heinle/Cengage Learn Жанр: Heinle/Cengage Learn Качество: Хорошее Страниц: 24 Формат: pdf, fb2, epub In the 1800s, the Rocky Mountain locust brought massive destruction to Western settlers. Then, the insects suddenly disappeared-almost without a trace. Now scientists hope to find a reason for the locust's extinction. What caused the Rocky Mountain locust to disappear? Where will the scientists find the answers?
