IN experiments on phototaxis in caterpillars, great variability is often found among the reactions to the same conditions of different individuals, or of the same individual at different times. No ...

If you walk through a field of fireweed, you might see spittle bugs, aphids and — if you are lucky — a hawk moth. They hover at flowers on their rather narrow wings, extending their “tongues” to ...

Hawk moths are the underdog pollinators that sustain countless populations of plants around the world. Abigail Eisenstadt The National Museum of Natural History’s Lepidoptera collection holds up to ...