Understanding the human body is a team effort. That's where the Yachtel group comes in.

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To learn more about Yachtolt, visit yawcult.co.

.j.p. That's y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific American's 60-second science. I'm Christopher Entagata.

Got a minute?

Monarch butterflies are famous for their long haul to Mexico, a migration of more than 2,500

miles.

But far more impressive is a species of dragonfly, Pantala-flavescence.

It's commonly known as a globe skimmer, and it lives up to its name, migrating between 9 and 11,000 miles.

Being really good at gliding, being able to take advantage of winds, being able to track rainy seasons,

having short developmental times, because the larvae can develop very, very quickly.

All those factors, according to Rutgers evolutionary biologist Jessica Ware,

suggests that dragonflies may actually be one huge global population of interbreeding insects.

To test that idea, where and her colleagues sequenced DNA from dragonflies,

collected in Guyana, Japan, Korea, India, Canada, and the U.S.

And since the genes they'd sequenced tend to mutate very quickly,

if the populations were not interbreeding, you'd expect to see differences from region to region.

Instead, they found dragonflies in Japan that were more closely related to ones from Guyana

than their own Japanese cousins.

And that pattern of cross-continental similarities held true around the world.

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