Researchers are learning that bacteria have senses similar to our hearing and sight. Bacteria even have a brain that receives information from their senses. They can make decisions. However, all of this is not enough to explain how bacteria can make the decision to swim toward food.

 Ref: Pietsch, Paul. 1983. "The mind of a microbe." Science Digest, Oct. p. 103.  Image: Bacteria by Arek Sochia CC0- -Pixabay.com

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