The migratory grasshoppers, including the locusts, are a serious threat to agriculture. Grasshoppers are typically found in temperate regions. If you put a grasshopper's head under water it would not drown, because grasshoppers do not breathe the way humans do. Along the sides of a grasshopper are a row of ten tiny holes. These are breathing pores.
Grasshoppers have one large compound eye on each side of their head.
This makes it possible for them to see to the side, back, and front, They also have three single eyes but no one knows for sure what these do. They are classified in the phylum Arthropoda, class Insecta, order Orthoptera, suborders Caelifera and Ensifera, families Tettigoniidae and Acrididae respectively. A grasshopper jumps by extending its back legs from a folded position, so that they thrust against the ground. If the thrust is too low, the animal doesn't get a fast enough take-off and it doesn't jump very far. Second, the legs have to develop this force quickly.