To display information about a single biological tissue in a *single* specie, first select the biological **tissue** to be compared from the drop-down list, then select one **species** from a drop-down list by clicking its name and click **compare** button. To compare metabolite content in a tissue through *several species*, select the **tissue** and then select several species in a **species** search bar and click **compare** button. This procedure generates an experiment that collects all the information about a tissue in selected species with a standard experiment description - statistical charts, data tables, metadata tables, and raw data. Generated experiment and corresponding raw data can be downloaded.