Authors: National Geographic, Rob Waring
Categories: Education
Publisher: National Geographic Learning
Published Date: 2008-10-31
Language: en
Description: 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?
