Do caterpillars sneeze?

Question

My child believes I should know everything, and I want to keep up with their curiosity. This morning, they asked me a unique question: "Do caterpillars sneeze?" Can anyone provide an answer to this intriguing query? I’m eager to learn more about the fascinating world of caterpillars and share accurate information with my child.

Adeline Goyette · Accepted Answer

I do not believe that caterpillars can perform any action akin to a sneeze because their breathing mechanism is entirely different from ours and from that of other vertebrate species. Caterpillars do not possess a nose or true lungs as we do. They breathe through openings along the sides of their bodies called spiracles, and they do not have muscle-driven breathing like we do. When we breathe, the large muscle known as the diaphragm pushes against the lungs, forcing air into and out of them. This same muscle powers a sneeze, along with other muscles in the chest and face.

A caterpillar's breathing is controlled by the expansion and contraction of its body. It requires very little air, and the air must travel such a short distance that the caterpillar can manage without powered breathing. Without any muscles to forcefully expel air, there can be no sneezing.... Show More

Hermina Ferry

Do caterpillars sneeze?

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