Monarch Butterfly Migration

In North America, monarch butterflies make yearly migrations to warmer southern regions during winter, returning to the north during spring. No individual butterfly survives long enough to make the full trip.

The average lifespan for summer-born butterflies is less than two months, which is not long enough to make the lengthy journey to overwintering locations in Mexico and California. However, the last generation of summer enters a non-reproductive state known as diapause. In this state, individuals can live for more than 7 months. 

During diapause, the butterflies migrate to warm southern regions, in order to avoiding the freezing northern winter. They have been known to cover entire trees completely while hibernating. Once winter is over, diapause ends and the fertile butterflies return back on a spring migration.

On their way back north, the now exhausted butterflies lay their eggs and die. These eggs hatch and mature, and continue the journey. It takes up to four generations of monarchs to make it back to their original location.

Luna sin estrellas, Ken Schneider,  Heather Spaulding on Flickr

  1. bedheadorfashion reblogged this from ichthyologist
  2. vodkaandsleep reblogged this from ichthyologist
  3. snappymap reblogged this from ichthyologist
  4. nemo000 reblogged this from ichthyologist
  5. eyrychan reblogged this from ichthyologist
  6. scuttlebuttmoosedrool reblogged this from zack13189
  7. zack13189 reblogged this from gloam-ing
  8. springflowersinthegarden reblogged this from infuction
  9. sad-littledaisy reblogged this from infuction
  10. gloam-ing reblogged this from infuction
  11. infuction reblogged this from confsuion
  12. hollowxy reblogged this from ichthyologist
  13. discountedreams reblogged this from closertodanger-fartherfromharm
  14. aconitum-napellus reblogged this from closertodanger-fartherfromharm
  15. datsheffy reblogged this from closertodanger-fartherfromharm
  16. closertodanger-fartherfromharm reblogged this from good-nyborg
  17. good-nyborg reblogged this from ichthyologist
  18. beccars reblogged this from ichthyologist
  19. glamorouspooopie reblogged this from ichthyologist
  20. magusthepropagation reblogged this from missmeedow
  21. missmeedow reblogged this from belislythindor
  22. johns-pornstache reblogged this from belislythindor
  23. m1ssc0mmun1cat10n reblogged this from belislythindor
  24. belislythindor reblogged this from ichthyologist
  25. sunpixie18 reblogged this from ichthyologist
  26. haii-listen reblogged this from canadianmetalhead666
  27. sailor-bb reblogged this from tough-flower
  28. icherdontbelieveinalifeafterlove reblogged this from tough-flower