This caterpillar wears the body parts of insect prey. ... Relatively few caterpillars eat meat, with about 300 carnivorous varieties out of nearly 200,000 documented moth and butterfly species.

Left: Chrysalis of a painted lady butterfly, showing breathing tubes (blue) and guts (red), at day 1 (left), day 13 (centre) and day 16 (right).

Scientists have created the first detailed wiring diagram of an insect brain. The brain, from a fruit fly larva, contained 3016 neurons connected by 548,000 synapses, the team reported Thursday in ...