No matter where you live, you can see these butterflies ... They can either be yellow, like the males of their species, or dark to mimic the bitter pipevine swallowtail. The dark form is found ...

These big, yellow butterflies are common in the ... There are six other common swallowtail butterflies that live in North America. Adult butterflies sip the nectar of milkweed, Joe Pye weed ...

This unappetising outfit is a clever ploy to hide in plain sight, a trick used by multiple swallowtail butterflies. You'll have to look carefully to find them, but the tiny creatures can usually be ...

Unfortunately, many of these insects are also imperiled. The Center is determined to gain protection for five of the rarest foreign swallowtail butterfly species on three continents. In 1994, a Center ...

In a new study, scientists have pulled from a 35-year dataset to examine long-term population trends of the federally endangered Schaus's swallowtail butterfly ... They live in different places ...