# How fruit flies chase invisible ribbons of smell to get to their source

# 果蝇如何循着看不见的气味丝带找到源头

作者: Jacek Krywko | 分类: Science, Biology, memory, navigation | 原文: arstechnica.com

时间: Sat, 01 Aug 2026 10:00:19 +0000

A fruit fly hunting a piece of rotting fruit or a mate navigates by smell, following plumes of odor. Out in the wild, turbulent air swirls these plumes into a chaotic, broken landscape—dense chemical filaments laced through long stretches of clean air. A fly trying to find the source gets the smell in stutters, from constantly shifting directions, with no guarantee that a next whiff is coming at all.

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