Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly species that evolved when two other species of swallowtails hybridized long ago, a rarity in the animal ...

The swallowtail butterfly family contains up to 700 species in the world, most of them tropical. More than two dozen are found in North America with seven found regularly in Texas. Swallowtail ...

EVERETT — An abundance of yellow butterflies has made it a colorful summer in the Pacific Northwest. It’s not just casual gardeners who have noticed the boom in tiger swallowtails. Across the ...

Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly that evolved when two other species of swallowtails hybridized long ago. Flitting among the cool slopes of ...

A yellow form of the female eastern tiger swallowtail butterfly, here at Spruce Knob, W.Va. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

A perfect combination for butterfly watching is a purple-flowered butterfly bush with colorful swallowtail butterflies. This gardener spent many hours on our porch on warm sunny days watching them ...

We know about migrating species of butterflies, but they don't all fly south for the winter. Several overwinter in their home habitat and could use your help.

AUSTIN, Texas—Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly species that evolved when two other species of swallowtails hybridized long ago, a rarity in ...