simple) : File:MercuryFoodChain-01.png in commons, made by Bretwood Higman, Ground Truth Trekking. (or also MercuryFoodChain-02.png) I, the copyright holder
This image is a derivative work of the following images: File:MercuryFoodChain-01.png licensed with Cc-by-3.0 2011-07-11T01:31:34Z File Upload Bot (Magnus