Monarch butterflies have distinctive orange-and-black wings with small white spots. And it's those spots that recently caught the attention of a group of scientists. As NPR's Nell Greenfieldboyce ...

Butterflies ... white wing spots that are three percent larger than those of monarchs found in places such as Georgia or Minnesota. At the same time, the Mexican animals have three percent less ...

Monarch butterflies with larger white spots on their wings are more successful at migrating long distances. It is unclear how these spots help the butterflies, but it is possible they create ...

Learn what an American lady butterfly and caterpillar looks like. Plus, see how it compares to a painted lady butterfly.

Did you know that monarch butterflies traverse the Volunteer State on their seasonal migration? Read on to learn when they'll ...

The butterfly population in the U.S. has dropped more than 20% over the past two decades. Some species living in Connecticut ...

Butterflies' flight trajectories often appear random or chaotic, and compared with other hovering insects, their bodies ...

The complete disruption of mir-193 eliminated black and dark wing colors in the African squinting bush brown butterfly, Bicyclus anynana, the Indian cabbage white butterfly, Pieris canidia, and ...

Think of a monarch butterfly, and a distinctive image pops up: black-and-orange wings, with a sprinkling of white spots around the black edges. Those white spots may actually help monarchs ...

The white spots on the edges of a monarch butterfly's wings might give it an advantage while migrating, according to new research. Sanka Vidanagama / NurPhoto via Getty Images For a migrating ...