It’s a diverse family, with more than 500 swallowtail butterfly species fluttering over six continents. Most are tropical, but about 25 kinds are found regularly in the United States and Canada.

The aptly named butterfly bush is a must-have for attracting swallowtail butterflies like the Black Swallowtail and the Pipevine Swallowtail. Its long, cone-shaped flower clusters are rich in ...

Here, RSPB volunteer Jenna explains why the magnificent Swallowtail butterfly is so special. Sophie Okonedo and Mark Rylance star in the first of Steve Waters’s seasonal dramas following the ...

Black and white stripes combined with a knobbly body make the caterpillar look remarkably like bird droppings. This unappetising outfit is a clever ploy to hide in plain sight, a trick used by ...

Swallowtails’ unique, tail-like hindwing extensions make them some of the world’s most beautiful and interesting butterflies. Unfortunately, many of these insects are also imperiled. The Center is ...

Swallowtails’ unique, tail-like hindwing extensions make them some of the world’s most beautiful and interesting butterflies. Unfortunately, many of these insects are also imperiled. The Center is ...

Some viewers of the photo said online that the object could be a swallowtail butterfly. “It certainly looks like the shape of a great Mormon (butterfly) turned upside down,” said Karin ...