“I still remember when I walked into the insectary and I saw B. anynana butterflies emerging from their pupa, and I saw the [pure homozygous mutant] phenotype—the whole light brown butterfly—which was ...

According to the U.S. Fish and Wildlife Service, their wings have a dark gray-brown color at the top, and their hindwings have a dark spot and an irregular dark line. The scarce butterfly can be ...

Great news for butterfly enthusiasts: record numbers of the once-endangered heath fritillary butterfly have been spotted at ...