Direct quote from the next room where Moomin and his friend Thom have all the couch cushions off and iceberg pillows.
This is our polar realm. The water is 1 billion degrees cold. So stay out of it. This is a polar stingray, an ANTARCTIC stingray. Those old newfangled legends say they can't live there, BUT THEY CAN. We make the room dark so our customers will know how dark it is in the polar winter.
When it's one billion degrees cold I cease to worry so much about the stingrays.
The two of them come up with endless nerdy sounding scientific zoo talk. I love overhearing it!