Queen Alexandra’s birdwing, with a wingspan almost a foot wide, looks more like a bird than a butterfly. It is, by far, the world’s largest butterfly. If you want to see it, you’ll have to ...

Its colorful wings warn predators of its poisonous, but not deadly, nature. Queen Alexandra's Birdwing thrives in old-growth forest, and Papua New Guinea's deforestation has put it on the ...