Mostly plant-eaters
Grasshoppers are mostly plant-eaters. At high population densities they can change colour and behaviour and form swarms, becoming a serious pest of cereals and vegetables and causing famine. When this happens they are called locusts.
Stridulation
Male grasshoppers spend much of the day stridulating - singing by rubbing body parts...
grasshopper
The most ancient chewing herbivorous insects, plaguing the earth for 250 million...
