Natural Selection: free biology simulation
Bunnies with mutations face wolves and changing environments. Watch allele frequencies evolve.
▶ Open the simulationFree, no sign-up. Works on phones, tablets and laptops.
The science
Individuals with traits that help them survive and reproduce pass those traits on more often. Over generations useful alleles become more common in the population. Change the environment or the predators and different traits are favoured.
Things to try
- Add a fur-colour mutation and change the environment to see which colour wins.
- Add wolves and watch which bunnies survive.
- Compare the population graph with and without predators.
Topics covered
evolution genetics alleles mutation predators environment population
How to use it
Open the simulation, then change the experiment live with the sliders, checkboxes and buttons in the side panel. Drag objects on screen where it makes sense, and use Pause, Step, Speed and Reset in the bottom bar to study every moment.
Frequently asked questions
What does the Natural Selection simulation show?
Individuals with traits that help them survive and reproduce pass those traits on more often. Over generations useful alleles become more common in the population. Change the environment or the predators and different traits are favoured.
Is the Natural Selection simulation free?
Yes. It runs free in any web browser on phones, tablets and laptops, with no sign-up or download.