I want to know the answer to the following question:
What live animals did they keep in the Bärengraben?
All the background I'm provided with is that "According to the local legend, based on folk etymology, Berchtold V, Duke of Zähringen, the founder of the city of Bern, vowed to name the city after the first animal he met on the hunt, and this turned out to be a bear.". Is that enough to answer the question?
Answer: no