Do flies really throw up on your food when they land on it?

By: Ravindra Palavalli-Nettimi, Florida International University and Jamie Theobald, Florida International University, The Conversation

Outlets: The Conversation

Published: December 6, 2025

Words: 979

Last Updated: 1 month ago

By Ravindra Palavalli-Nettimi, Florida International University and Jamie Theobald, Florida International University

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Do flies really throw up on my food when they land on it? – Henry E., age 10, Somerville, Massachusetts

Imagine you’re at a picnic and just about to bite into your sandwich. Suddenly …

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