Their wingspan is 2 1/2 to 4 inches. Check out the ultimate tiger swallowtail butterfly guide. As caterpillars, they feed on the leaves of the small pawpaw tree or others in its genus. The pawpaw ...

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 ...

Swallowtail distribution is wholly dictated by the availability of milk parsley, its caterpillar food source. When the Norfolk Broads were actively managed by reedcutters who harvested both reed ...