The Kölner Zoo currently has three elephants that are less than two years old, and they are quite fun to watch, especially in the great elephant house that is such a nice facility for the animals. This elephant defied our understanding of physics by walking along the edge of the wall that contains the pool. Surely the architects of the pool would never have guessed this to be possible. Where he's pictured here, the wall is over 2 meters high. Falling would have been severely dangerous. Yet, right after this picture was taken he managed to gingerly turn himself around and walk back.