Found throughout the eastern United States and Canada, this silk moth’s unique pale green color and long tails make it easy ...

It's not a butterfly — it's a moth! Learn how to identify the promethea silk moth, a beautifully patterned backyard visitor.

This story appears in the June 2016 issue of National Geographic magazine. Light green, long winged, and roughly the size of a playing card, the luna moth is a striking creature. It’s a clever ...