grasshopper's live in grass because they camouflage in the grass. they do that because the grasshopper's hide from there prey. :)
It really depends on the animal, Some animals depend on camoflage to hide from its enemies.
in their shells
hide
they run away.
they will make their cocoon
it changes its color
They are both insects and are enemies
A grasshopper has two very tinsy eardrums. this helps them to hear their enemies coming from behind. The same as us we have two eardrums to hear.
They can hide from their enemies.
they go in the deep of the water
To hide themselves from their enemies