How to beat mosquitoes

June 21, 2026

AI Summary

5 min read

Mosquitoes are the deadliest animal on the planet, but most people don't think about them that way. They think about the itch. Entomologist Sonja Swiger at Texas A&M explains that a mosquito bite is actually a sophisticated biological transaction. The female mosquito needs a blood meal not for food, but to produce eggs. When she bites, she uses her proboscis to probe for a blood vessel, then unsheathes the inner part of her mouthparts and forces it into the skin. At the same time, she spits saliva into the wound. That saliva contains an anesthetic so you don't feel the bite, plus an anticoagulant to keep the blood flowing at a manageable rate. The downside: if the mosquito is carrying a pathogen, that saliva is also how it gets transmitted to you.

Why mosquitoes target you

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What you'll learn

1 (01:17) **Why Mosquitoes Love You** - Entomologist Sonia Swagger explains the science of mosquito attraction, including CO2, body temperature, and even the colors you wear.
2 (04:08) **The Mechanics of a Bite** - How a female mosquito uses her proboscis to bite, anesthetize, and feed, while potentially transmitting pathogens.
3 (05:40) **Why Bite Reactions Vary** - The timeline and severity of mosquito bite reactions depend on the person, their exposure history, and can change over a lifetime.
4 (07:25) **What Actually Works for Repellent** - The entomologist's personal picks: DEET as the gold standard, plus Picaridin and oil of lemon eucalyptus (with a caveat for children).
5 (09:22) **Post-Bite Remedies** - Simple advice: ice and anti-itch products calm the body's reaction; the goal is to trick the skin into calming down.
6 (13:15) **The Bigger Problem: Mosquito Control** - Introduction to the challenge of managing mosquito populations at the source, including insecticide resistance.
7 (16:09) **Genetic Control: Population Replacement vs. Suppression** - Researcher Eric Caragata explains two genetic strategies: immunizing mosquitoes against pathogens, or reducing their numbers.

+ Full timestamped outline available in the app

Show Notes

They’re the deadliest animal on the planet. Now even Google is getting into the extermination business.

This episode was produced by Ariana Aspuru, edited by Jenny Lawton, fact-checked by Michelle Hirsch, engineered by Patrick Boyd, and hosted by Jonquilyn Hill.

A tiger mosquito is crushed in the hand of a man after being bitten. Photo by MATTHIEU DELATY/Hans Lucas/AFP via Getty Images.

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