Evolution Simulation is a free Chrome extension developed by Finan Gammell. As the name suggests, this program allows users to simulate evolution by observing natural selection over generations of simulated organisms.

The extension creates virtual "organisms" with heritable traits such as shape and color. Depending on the selection criteria set by the user, certain organisms have a better chance of reproduction. This leads to the occurrence of heritable traits that are more favorable to the selection criteria, mimicking the process of natural selection.

By using Evolution Simulation, users gain a better understanding of how and why evolution takes place. It provides a hands-on experience of observing the effects of natural selection on a virtual population of organisms. This educational tool is a great way to explore the concepts of evolution in a visual and interactive manner.

Overall, Evolution Simulation is a valuable Chrome extension for anyone interested in learning about evolution and natural selection. It offers a unique and engaging way to explore this fundamental biological process.