Today marks 150 years since the publication of Charles Darwin's On the Origin of Species, and scientific understanding of evolution continues to take some remarkable twists and turns. To commemorate this historic day, the National Science Foundation has released a special anniversary edition of their Evolution of Evolution online resource.

This report, with its thoughtful essays, intriguing interviews, and extensive timelines, chronicles the challenges and triumphs of the evolution of evolution.

How are you commemorating this historic day?