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Processionary caterpillar in australia harms unborn foals with barbed hairs

The processionary caterpillar, a peculiar species found in Australia, displays paradoxical behavior. While it marches in an endless loop seeking food, it can also harm unborn foals. Ochrogaster lunifer possesses barbed hairs causing hives upon touch. These caterpillars follow silk trails to find food, forming groups of up to 200. However, if two follow each other’s trail, they circle aimlessly, leading to confusion. This behavior, although fascinating, can result in a tangled mess for groups of caterpillars.

National Geographic

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