Worms possess large, toothless mouths, but their mouths are only used for eating decaying plant and animal matter. Worms cannot breathe through their mouths; they also do not have noses or lungs. But worms still need to breathe, and just like humans and...
When it rains a great deal earthworms seem to come out of the ground and end up on sidewalks or driveways. If it gets sunny and warm quickly after a rain, you will notice the earthworms dry out before they can get back to their hiding spots. An earthworm needs humid conditions in order to survive as they breathe through their skin.