Per-Erik Zettersten , zoo elephant keeper in Sweden in Sweden . Introduced to elephant management and training by head elephant keeper Dan Koehl at Stockholm Zoo (Skansen) in Sweden, Zettersten moved to Kolmarden Zoo where he trained the elephant Putchie for riding operations, and also worked the bull Brahma in free Contact. From left: Nika, Pelle Zettersten, Dan Koehl and Shiva, during a walk on Skansen. Photo: Catharina Koch-Florman. Picture from ultrascanning of Brahma. From left to right: Frank Göritz, Thomas Hildebrandt, Pelle Zettersten, Jörgen Gustafson, Thomas Antmar. Photo: Bengt-Ole Röken, Kolmården. After being an appreciated elephant keeper for ten years, Zettersten changed profession and became a journalist in Sweden.