How do monarch butterflies travel so far?
How do monarch butterflies travel so far?  
Podcast: Brains On! Science podcast for kids
Published On: Tue Sep 09 2014
Description: Monarch butterflies are unique — they’re the only butterfly to travel thousands of miles when the seasons change. They travel from as far north as Canada all the way down to a few very specific mountaintops in central Mexico.They don’t have a car, or an airplane ticket. They just have their two little wings. So we’re asking: How do they do it? How do they migrate thousands of miles? And why?