amazing Ted Talk
https://ed.ted.com/lessons/how-bacteria-talk-bonnie-bassler
How bacteria "talk" - Bonnie Bassler | TED-Ed
Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine, industry -- and our understanding of ourselves.
https://ed.ted.com/lessons/how-bacteria-talk-bonnie-bassler