The Mystery Of The World’s Greatest Butterfly Migration – Reblog – Science!



Every winter, tens of millions of butterflies travel up to 4,500 km from all over North America to spend the winter hanging from oyamel fir trees in central Mexico’s mountain forests. But how does an animal with a brain the size of a poppy seed travel safely through to this one special place?

Via – It’s Okay To Be Smart

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Author: Marilyn Armstrong

Writer, photography, blogger. Previously, technical writer. I am retired and delighted to be so. May I live long and write frequently.

11 thoughts on “The Mystery Of The World’s Greatest Butterfly Migration – Reblog – Science!”

        1. It was. I remember being out on my sailboat on a migration day for the Monarchs. I looked up and the sky was completely covered with butterflies. A lot of them decided to rest on the sails and I just lay there, watching. It was AMAZING.

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            1. I know. We used to get the full flight of the Monarchs on Long Island. I don’t think they cross our paths here, though. They travel along the ocean then make a left into northern New England and Canada. They are so incredibly beautiful!

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            1. I don’t know if you are in their path. The always crossed over Long Island where I grew up, but you never saw them at home. They crossed over the ocean inlets along the south shore, not even as far inland as we were. But when you get into Vermont and Maine, the cocoon there I think. Google it and see if you in their path.

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  1. They hang around in the San Luis Valley where there is copious milkweed AND people plant it as a garden flower. I had never seen one before — but last year they hung out in my garden and I felt honored.


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