Scientists have sequenced the genomes of 101 monarch butterflies to find the secret to their thousand-mile migration.
North American monarch butterflies migrate for thousands of miles every year.
They go all the way from the northern United States and southern Canada in the summer, to Mexico in the winter.
Jaap de Roode
That's a very long way!
Basically, they're superheroes.
Flo Perry / BuzzFeed
There are other populations of monarch butterflies who don't migrate, but permanently live in warm tropical climates.
Sonia Altizer
So what makes some butterflies want to take to the skies and others happy to stay put?
Flickr: lunasinestrellas / Creative Commons
from BuzzFeed - Animals http://ift.tt/1vy3aer
Created by Peter
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