Garden Tiger Arctia caja

Here's the wild part: the caterpillars of these stunning orange-and-black moths actively hunt down and eat plants loaded with toxic alkaloids—chemicals that would poison most other insects. By stockpiling these toxins in their bodies, the caterpillars become poisonous themselves, which their bright warning colors advertise to predators. Found across cold northern climates in North America and Europe, these moths prefer areas with temperate seasonality where their larvae can overwinter safely. Despite their taste for toxic plants, they're generalists that'll munch on many different host plants. It's a clever survival strategy: steal the poison, become the poison.