Females are a duller black color. They lay bright red eggs in groups on their host plants, and their caterpillars are extremely fast moving. The giant swallowtail is the largest swallowtail ...

Fennel is another wonderful plant that attracts the Black Swallowtail butterfly. This herb is similar to dill in that it serves as a nectar source for adults and a host plant for caterpillars.

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 ...