Why do gnats fly in circles?

Related questions

1. Why do gnats fly in your face?
2. Is there a spray you can use to get rid of gnats?
3. Does vanilla get rid of gnats?
4. Do House gnats bite humans?
5. Can alcohol kill gnats?
6. Do gnats bite?
7. How long does it take to kill gnats with vinegar?
8. Where do gnats come from inside the house?
9. How does hydrogen peroxide get rid of gnats?
10. Does bug spray kill gnats?

Tags

1. #species
2. #flight
3. #order
4. #catch
5. #biological
6. #secreting
7. #right
8. #moment
9. #fulfilling
10. #their
11. #males
12. #insects
13. #attracts
14. #females
15. #gnats
16. #hormone
17. #other
18. #midges
19. #imperative
20. #scent
21. #swarm
22. #reproduce
23. #while
24. #distance
25. #those