Perfect swarm, the: footprint reading library 3000
Auteur :
Geographic, National / Waring, Rob
Éditeur :
Cengage Learning, Inc
ISBN :
9781424011322
Date de publication :
7 mai 2009
Dimensions :
0,4 x 14,9 x 20,0 cm
Poids :
95 g
Langue :
Anglais
Pays d'origine :
USA
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?