Dear Landon,

I love taking selfies with my insect friends. They’re so tiny and look so different from a big cat like me.

But my friend Rich Zack told me that insects and humans have lots in common. He’s an insect scientist at Washington State University.

“There are body systems that every animal needs,” Zack said. “Insects are relatively advanced animals, so they do a lot of things like humans do.”

That means many of an insect’s body systems are like yours. But there are three body systems that are super different for insects. Those are the skeletal, circulatory and respiratory systems.

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