of 37. Sadly, Jia Jia began to suffer the effects of advanced aging in October 2016, refusing most food and fluids and rapidly losing weight. On 16 October, after having been found unable to walk, her vets decided to euthanize her. Then age 38 (114 in panda years), she was sometimes billed as the oldest panda in the world. She was definitely known to be the oldest panda in captivity. Although there is no such certain data regarding pandas in the wild, their life expectancy in the wild is 15 to 20 years, giving the claim a good likelihood of being correct. Dolphins The Park's Marine Mammal Breeding and Research Centre houses nine Indo-Pacific bottlenose dolphins. In July 2009, Domino and Dumisa, two dolphins from Bayworld in Port Elizabeth, South Africa, arrived at Ocean Park. The dolphins, a father and daughter pair, were separated to ensure that they do not mate with each other. They formed part of Ocean Park's breeding programme. In May 2001, two of Ocean Park's female dolphins, Ada and Gina, each delivered a healthy calf, a female and male respectively, the world's first two bottlenose dolphin calves as a result of artificial insemination. This marked an important development in reproductive physiology and controlled breeding of marine mammals. Killer whale – Miss Hoi Wai Hoi Wai was a female killer whale, captured near Iceland in 1977 and kept at Ocean Park from January 1979 to April 1997. Miss Hoi Wai was about long and weighed about . She died from an emergency intestine infected wound in 1997. In Hong Kong, Miss Hoi Wai (海威小姐) is still considered an icon and celebrity to this day. She was kept with Prince, a male killer whale who lived at the park from April 1989 until his death in July 1991. They produced no offspring. Chinese sturgeon The Chinese sturgeon were introduced to the park in 2008, and as at 2013, Ocean Park houses nine Chinese sturgeons, displayed in Chinese Sturgeon Aquarium – Yangtze Exploration. To mark China's hosting the Olympic Games, the Chinese Central Government made a gift of five rare Chinese sturgeon, symbolising the five Olympic rings, with Ocean Park as the recipient. Two were bred by the Yangtze River Fisheries Research Institute and three by the Beijing Aquarium. The fish made their debut on 20 June 2008. However one of them died after a few days, apparently bitten