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The Conversation ·For the curious

Mosquitoes Are Picky Eaters – We Studied 3 Common South Florida Species to Learn Why They Like Some People More Than Others

by Matthew DeGennaro, Associate Professor of Biological Sciences, Florida International University

Published 2026-09-04 12:28:54+00:00

What makes your skin smell like a perfect meal to one mosquito, but not another?

0:00 / 8:47 · Narrator Algieba

Context

A plastic box sits in a Florida lab, dividing a bare human arm from a swarm of hungry mosquitoes. Writing on 4 September 2026, a team of biologists uses that setup to answer a familiar backyard question. Why do some people get eaten alive while others walk away without a scratch? The answer comes down to microscopic skin bacteria and reveals a surprising twist. Different mosquito species have completely different appetites, meaning the universal mosquito magnet might just be a myth.

Show notes

A study of how three common mosquito species choose which humans to bite, based on lab tests with 119 participants. Researchers collected skin odors and swabbed for bacteria to identify the specific microbes that attract or repel each species. The findings show that different mosquitoes prefer different scents, meaning no single person acts as a universal magnet for all types.

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