Most insects rely mainly on their central nervous system to live. They don't need oxygen from lungs, they respire through their carapace. They can go a long time without eating. As long as the head is intact many can survive until they starve to death.

Most insects rely mainly on their central nervous system to live. They don't need oxygen from lungs, they respire through their carapace. They can go a long time without eating. As long as the head is intact many can survive until they starve to death.