Sana Ahmed, presented her synopsis as to study the public perception about the zoo and the role it plays to enhance the visitors' experience. The study included a survey from more than 200 zoo visitors, questioning them about different zoo facilities, animal species kept at zoo and about their experiences and suggestions. The study provided a useful insight to how visitors perceive the zoo. Likewise, it helped the zoo in shaping future strategies to design and launch interactive public awareness campaigns about ex-situ conservation. The research paper was presented in the National conference and training workshop of Wildlife and Aerobiology, held at University of the Punjab, Lahore. The researcher, first author of the paper (co-author of 3 other papers) got her paper publish in The Journal of Animal and Plant Sciences under the title, "The Study of Public Perception for Captive Animals at Lahore Zoo, Pakistan." Gift shop In 2005, a gift shop was opened in joint collaboration between Pakistan branch of WWF and the Lahore Zoo. Ali Bokhari, the marketing head of WWF-Pakistan, stated that the profit earned would be split in half between the Lahore Zoo and WWF-Pakistan. Lahore Zoo would make souvenirs from the profit which would be on sale at the shop, while the WWF would invest it on the conservation of nature in Pakistan. The products include shirts, mugs, plush toys, posters, caps and bags among many others. Breeding efforts Asian black bear: In September 2009, a rescued female was given to Lahore Zoo by World Wide Fund for Nature. Lahore Zoo was successful in breeding the species when twins were born in early January 2010. The cubs, however, went missing on 17 January. Chimpanzee: A pair (named 'Romeo', the male and 'Juliet', the female) were brought to the zoo in 1994. They gave birth to a male named 'Tinku' in April 2000, another female named 'Pinky' in 2004 and a female named 'Honey' in April 2005. In October 2004, the Wildlife Department of Pakistan told the Daily Times that the four-year-old 'Tinku' had died some time in early August from pneumonia. On September 17, 2008, Romeo died at the age of 21 from a prolonged illness. Hippopotamus: A six-year-old male hippopotamus was brought to the zoo on January 16, 1974. On July 11, 2006, zoo bought a six-year-old female to mate with the male that has been at the zoo for over three decades.