Dear Kaylen,

I use my paws for all kinds of things. That’s how I adjust my microscope, set up my microphone for a podcast and write answers to science questions. But most cats don’t do those things. Maybe that’s why cats don’t have fingerprints like yours.

I asked my friend Katherine Corn about that. She’s an evolutionary functional morphologist. She studies how animal bodies evolved to do all kinds of jobs. She’s the director of Washington State University’s museum of vertebrate zoology.

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