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The original was posted on /r/todayilearned by /u/OkAccess6128 on 2025-06-11 12:16:18+00:00.

Original Title: TIL that mosquitoes find humans by sniffing out two specific skin chemicals, decanal and undecanal, released in our natural skin oils. These trigger a human-only scent response, making us nearly impossible for them to ignore.