why are caterpillars harmful to humans?

Answer 1

Harmful Caterpillars to Humans

User Why are caterpillars harmful to humans

Caterpillars, in general, are not harmful to humans. However, there are certain species of caterpillars that can cause harm or discomfort due to their defensive mechanisms or venomous properties. Here are a few reasons why some caterpillars can be harmful:

Venomous spines or hairs: Some caterpillars have spines or hairs that are equipped with venom or irritating substances. When these spines come into contact with human skin, they can cause skin irritation, rashes, or allergic reactions. Examples of such caterpillars include the puss caterpillar (Megalopyge opercularis) and the oak processionary caterpillar (Thaumetopoea processionea).

Stinging caterpillars: Certain caterpillars possess specialized stinging structures, such as nettling hairs or barbs, which they use for defense. When humans accidentally touch or brush against these caterpillars, they may experience a sharp, stinging sensation, similar to a bee or wasp sting. The Io moth caterpillar (Automeris io) and the saddleback caterpillar (Acharia stimulea) are examples of stinging caterpillars.

Ingestion of toxic caterpillars: Some caterpillars contain toxins or poisons within their bodies, often derived from the plants they feed on. If humans mistakenly ingest these toxic caterpillars or their hairs, it can lead to gastrointestinal issues, such as nausea, vomiting, or abdominal pain. It is important to note that the majority of caterpillars are not toxic, and it is always best to avoid eating any unknown insects.

It's worth mentioning that while these harmful interactions are possible, they are relatively rare occurrences. Most caterpillars are harmless and play essential roles in ecosystems as they transform into butterflies or moths, pollinate plants, and serve as a food source for other organisms.

Answer 2

They have venomous skin