These caterpillars carry a toxic chemical cocktail and Inquisition-like delivery implements—and their geographic range is ...

Warming temperatures are causing venomous caterpillars to expand their range. Two such caterpillars are the asp caterpillar, which packs a very painful sting, and the oak processionary caterpillar, ...

You might conclude that this peacock moth caterpillar is having a bad hair day. But that array of green and black spikes has a purpose – to protect the creature from predators, by packing a mean sting ...