• Free in the last hour of opening Tuesday to Saturday, and all day on the first Sunday of the month (permanent galleries only)
• Special exhibition costs extra, at CHF 19 for adults and CHF 9 for under-20s, while under-13s still go free
• Museum passes accepted, so entry is free with the MUSEUMS-PASS-MUSÉES or the Swiss Museum Pass

The permanent galleries fill an old town building with dinosaurs, a mammoth and saber-toothed tiger, whales and fish, ammonites and other fossils, and invertebrates from squid to butterflies.

One gallery follows a butterfly from egg to adult, another covers threatened and extinct animals like the quagga and dodo, and Showcase Nature brings together the birds, mammals and minerals of Switzerland.