I saw these three this summer, and they were so entertaining! I'm from the East, and we just don't see many giant otters here. They seemed to be in an enclosure that was very small for their needs. LOL My daughter saw them all swimming in this tiny little pool and thought the zoo had made them a whirlpool or hot tub--when it was all their frenetic churning that was making the whirlpool! When I saw that huge exhibit with the broken glass, I was wondering if the otters were actually meant to go there? What caused that?