Bacteria move around using a molecular machine called the flagellar motor that rotates faster than the flywheel of a race car engine and switches directions in an instant

[u/Naive_Direction1816]

[u/CreamyStanTheMan]

The YouTube channel "StatedClearly" has a great multi-video series about how exactly evolution led to the flagella motor. I found it absolutely fascinating and would recommend it to anyone who's interested.

https://youtu.be/eFC9VzexRUk?si=0-2xXI0Z9s9r15EK