Caroline Bricker rallied to upset Regan Smith in the women’s 200m butterfly at the U.S. Swimming Championships with a time of ...

Pity the monarch butterflies. Not only do the earnest flutterers fly up to 265 miles a day on ... Will there be a surprise cold snap? Will the unusual weather affect breeding success?

It is unclear how these spots help the butterflies, but it is possible they create temperature differences across the insect’s large wings, reducing drag and helping them fly more efficiently.

Butterflies' flight trajectories often appear random or chaotic, and compared with other hovering insects, their bodies follow seemingly mysterious, jagged, jerking motions. These unique hovering ...

The monarch migration took a mysterious turn this summer when large numbers of the iconic butterfly veered off course ... those that fly to Washington state typically follow migratory corridors ...

"It's never crossed my mind that it might influence how the butterflies fly." Monarch butterflies definitely need to fly well to complete their annual fall migration of up to 3,000 miles.

Want to know more about the beautiful winged visitors in your backyard? There are so many extraordinary butterflies that are ...

This week's "Best Of" features an unconventional photographer, a pregnancy reveal, a butterfly lady, Golden Retriever heaven, and a grandpa's surprise. In Charlotte, North Carolina, Brooke Light ...

He has often reminded me how important milkweed is as a dietary lure for Monarch butterflies, which unfortunately are far less common today than they were yesterday as increased use of herbicides ...

Caroline Bricker rallied to upset Regan Smith in the women’s 200m butterfly at the U.S. Swimming Championships with a time of 2:05.80.

Butterflies' flight trajectories often appear random or chaotic, but their hovering patterns can potentially provide critical design insights for developing micro aerial vehicles with flapping wings.