On January 11 and 12, the School of Biology/Chemistry hosted the Lower Saxony state seminar for the third round of the International Biology Olympiad. A varied programme awaited the twelve participating students, including a guided tour around the Center for Cellular Nanoanalytics (CellNanOs), a visit to the Botanical Garden's rainforest house and plenty of time to get hands-on in the Explain-OS student laboratory.