Turn on a light outside at night, and it won't be long before a bevy of insects start careening wildly around it, apparently drawn in "like a moth to a flame," as the saying goes. Now, in a series of ...

Millions of years ago, oversized insects such as griffinflies boasting wingspans comparable to today's hawks scuttled across (and fluttered above) the planet. But why these jumbo jets of the insect ...