The new Elephant House, which opened in June 2008, is designed by Norman Foster in cooperation with the Danish landscape architect Stig L. Andersson. It houses Asian elephants, and contains two glass-domed enclosures. One is for cows and calves and measures . The other is and is for bulls, kept in separate pens during the mating season for fear of fights. The building also contain an exhibit space and a small lecture hall. The enclosures open out through mighty rusted steel doors into am almost 1 hectare big landscaped paddock with a pool deep and long.