Yep.



" Consider the skin on your face. As smooth and peachy as it may look, every square centimetre houses around one or two “demodex spiders”. They mostly lie low, but once you’re asleep they crawl across your face to mate and lay eggs in your pores. Don’t feel too disgusted, though – in return for their food and lodging, these spiders clean away some of the harmful bacteria that might cause a dangerous infection."



Copied from BBC.com



Also there are thousands of little insects that lives in our belly. They are very useful, harmless creatures and they help the process of digestion.

