Monarch butterflies and their close relatives thrive on poisonous milkweed, thanks to genetic mutations that block the effects of the plant’s toxins while allowing the poisons to accumulate in the ...

Napa Valley has a unique plant growing along its waterways, especially along the Napa River. It is Dutchman’s pipevine (Aristolochia californica) and it is native to California. This plant, one of ...

Williamson County, IL -- Monarch butterflies have begun their annual migration south for the winter, and over the next couple of weeks they'll be fluttering all over the Heartland. Saturday volunteers ...

A gene which helps a harmless African butterfly ward off predators by giving it wing patterns like those of toxic species, has been identified by scientists who publish their findings today (20 ...