And then we waited and like a month later the bears gave birth and we could hear the youngsters in there. And then actually said, I think we need heater. Very cold. You know, it was a cold winter put on the heater and shot a blast of hot air up the butt of the bear who was lying there. And she came blasting out of the tunnel and he became alarmed. He shut it off. And he told me what happened. So we decided the heater was unnecessary. The bears generated enough heat to keep the cubs warm in the hemi igloo. So it was a big success.
