Some insects can live for substantial periods without a head, although they will usually die of dehydration or starvation within a day or two (cockroaches may live even longer). This is because their breathing and other autonomic functions do not require direct control by the brain, and unless they lose substantial blood and fluids, many of their organs will continue to function.
some of grasshopper live long at the forest and so on
jh
A mantis can live 1 day and a half without his head.
5 years
1 second
7 days
15 years
im not not shure if you mean how long do cockroaches live without a head, but if so i read they can last about week.
3 months
1 second
The average lubber grasshopper can live about 8 months. They hatch and develop during the spring and reproduce until they die when the cold weather hits.
The grasshopper has a body that is segmented into three parts. They have a head, thorax, and abdomen. They are covered by an exoskeleton and have a somewhat funny shape with a long legs and a long body.