To be completely honest I am uncomfortable with the idea, especially given the design of the exhibit. If the exhibit had a nice wide water moat with a separate area for the otters, that would be different. It just feels like an unnecessary risk. If I am remembering correctly South Lakes used to mix small clawed otter and spectecled bear, and that did not work out too well.
I mean it doesn’t hurt to try. Besides Andean bears aren’t sloth bears
