Appalachian tiger swallowtail butterfly is a hybrid of two other swallowtails, scientists find
Thursday, September 8, 2011 - 18:30
in Biology & Nature
Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly species that evolved when two other species of swallowtails hybridized long ago, a rarity in the animal world, biologists have found.