Attract the elegant zebra swallowtail butterfly to your yard by growing nectar plants. Also discover the host plant for the ...

Did you know that caterpillars come from butterfly eggs? See pictures of butterflies laying eggs on their host plants.

This Swallowtail butterfly has multiple pairs of legs as a caterpillar, but they look completely different once it undergoes metamorphosis.

Swallowtail caterpillars are green once they grow large Kerry Calloway, who helps manage the tropical butterfly house, says, 'When they are resting on top of a green leaf, they look just like bird ...

Many Delaware groups, including conservation organizations, state agencies and Sen. Stephanie Hansen, D-Middletown, are ...