Do bugs have muscles? ... In humans, our muscles are attached to our bones through connective tissue called tendons, but in arthropods, their muscles are connected by small hooks to the inside of their exoskeletons. Despite our differences, bugs move just like we do: by contracting and relaxing their muscles.

How do bugs move without muscles?

In a study published today in the journal Current Biology, the researchers show that the structure of some insect leg joints causes the legs to move even in the absence of muscles. So-called 'passive joint forces' serve to return the limb back towards a preferred resting position.

Do insects feel pain when they fall?

They don't feel 'pain,' but may feel irritation and probably can sense if they are damaged. Even so, they certainly cannot suffer because they don't have emotions.