A strikingly green caterpillar about as long as my little finger was attached to a sprig of oak leaves in our yard. Knowing the caterpillar with spikes on its back was the larvae of an Io silkworm ...

They flutter under streetlights, chew holes in old jumpers, and vanish before you get a proper look at them, but moths are much more than just nighttime nuisances. These insects have surprisingly ...