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Now your readers can \textbf{Launch IPython} directly in their browsers (by clicking on the link in the bottom left of your figure block), see your annotated data and code, and test and adjust it. Beyond the obvious advantages this provides for streamlining the scientific process, imagine implementing this to facilitate classroom learning or centralizing repeated analysisprocedures  in a lab. lab setting. What's more, it gives you a place to be very descriptive with your code, explaining each part.  Find below In the predator-prey modeling example below,  a couple simple examples. Feel free to hope might be that with a clear walk-through, anyone so inclined could modify or  fork it! it, perhaps adding a third organism or some other environmental constraint. Or, if they had some ecological data, to test to see how well the model could fit their data.