SAN FRANCISCO — This spring, the dramatic return of a rare, blue iridescent butterfly dazzled onlookers at the San Francisco Botanical Garden in Golden Gate Park. Neighbor John Gale, who visits the ...

Butterfly gardening is a popular pastime in North Texas. In our ardor to provide sustenance, however, we may be serving up a deadly dish unwittingly. The iridescent black-and-blue pipevine swallowtail ...

Question: In a May 30, 2008 question regarding the toxicity of certain Aristolochia species to pipevine swallowtail larvae, I had heard the same from at a talk from the curator of the Cockrell ...

Last week I had a picture of a dark form of the eastern tiger swallowtail with my column. The obvious question about any species with more than one color form is: What is the advantage? The advantage ...

CHICO — It’s pipevine swallowtail season, meaning black and orange caterpillars are milling about all through Bidwell Park. Chico Park and Natural Resources Manager Shane Romain is advising park goers ...

Add Yahoo as a preferred source to see more of our stories on Google. It is a commonly held belief that one person can’t make much of a difference when it comes to helping the environment. But Tim ...

The explosion of wildflowers throughout March and April ushers in a favorite Sonoma County phenomenon - the emergence of the pipevine swallowtail butterflies. The explosion of wildflowers throughout ...

Sometimes you place a plant in your garden and forget all about it. That’s how it has been for me with “Aristolochia elegans,” better known as Dutchman’s pipe, pipevine or calico flower. Although I’ve ...

Tim Wong was first inspired to raise caterpillars in elementary school, when his class raised painted lady butterflies. "I was amazed at the complete metamorphosis from caterpillar to adult," Wong ...

The colors and patterns of black swallowtails reveal the diversity of evolutionary dynamics acting on the sexes and the various life-history stages Six species of swallowtail butterflies occur locally ...