General Biology II · Module 1 · Evolution and natural selection

Evolution and Natural Selection Walkthrough

Watch individuals live and die, populations shift over generations, and the DNA underneath change, all at the same time. Follow the evidence from fossils, anatomy, molecules and living populations. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · General Biology II Study Tools · Drawings are simplified and not to scale. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Generations and fossil change are shown far faster than real life so you can follow them; data values are rounded teaching values. Practise next in the Evolution and Natural Selection Lab.