Why do these microscopic organisms exclusively swim in a northern direction?
In short: A simple observation of a beach sample revealed a strange behavior: bacteria moving in a perfectly straight line. By placing a compass on a microscope stage, researchers discovered these organisms are magnetically driven to travel north.
The discovery began with a sample collected from a beach in Portugal. When observed under a microscope, the bacteria displayed a distinct, linear swimming pattern. To investigate this movement, a compass was used to determine the orientation of the organisms relative to the Earth's magnetic field.
The experiment confirmed that the bacteria were consistently swimming toward the north. This behavior highlights the fascinating ways microorganisms interact with their environment, specifically through magnetotaxis, where organisms align themselves with magnetic fields.
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- Summary by Intellect · source: Bacteria That Only Want To Head North
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