Well, I certainly hope the butterfly has more energy after eating through one apple, two pears, three plums, four strawberries, five oranges, a chocolate cake, an ice-cream, a pickle, a cheese, a salami, a lollipop, a cherry pie, a sausage, a cupcake, a watermelon, and finally a green leaf.

>"How is this possible? I cant even walk 10 miles without needing food. Where did the butterflies store their energy?"

Air is a very different substance at that size scale. It is quite thick and viscous. It would be more accurate to say that the butterflies floated across the Atlantic. Locust hordes do the same, and can travel thousands of miles via the jet stream. They are not flapping their wings to maintain thrust the entire way.

Try walking further: calculate a loop of slightly longer than that and go for it.

I’ve had a lot of fun doing exactly this as exercise in the last few years - picking incrementally longer “loops” of distance and just fucking going for it with a bunch of water or Gatorade equivalents :)

Caveat: may become addictive.

> How is this possible?

Countries in the Caribbean regularly get air quality problems because of wind borne dust. From Africa.

Just two words to add to this theme:

Pantala flavescens

> How is this possible?

Wind ?

You could walk for many days without food if it was your only hope of living.

Yes you can. People vastly underestimate their bodies.