
Granddad, who came to Shedd from Australia in anticipation of the 1933-34 Chicago World’s Fair, was seen by more than 104 million people during his time in Chicago, aquarium president Bridget Coughlin said in a statement on Monday announcing his death.“For a fish who spent much of his time imitating a fallen log, he sparked curiosity, excitement and wonder among guests of all ages who would hear his story and learn about the incredible biology that makes his species a living fossil and one of the oldest living vertebrate genera on the planet,” Coughlin said. According to the aquarium, lungfish, which can live to be more than 100 years old and are a protected species in Australia, have existed for nearly 400m years and fossils show they have remained unchanged for over 100m years.A Shedd spokeswoman said Granddad’s exact age was unknown but that he was believed to be in his mid-90s. The aquarium said Granddad was euthanised after losing interest in food and showing signs of organ failure. The secret to his long life is reported to be - his "pretty relaxed life... imitating a fallen log" at the bottom of his tank, according to a blog postby his caretaker.He was also treated to a balanced diet of "fish, shrimp, clam, a prepared gel diet and a mix of fruits and vegetables," including a daily helping of Romaine lettuce and a weekly treat of earthworms.Granddad was not only Shedd’s longest-lived resident but also the oldest fish in any public zoo or aquarium in the world. The aquarium was started with Shedd’s initial donation of $2 million – but John G. Shedd never saw his aquarium. He died in October 1926 at age 76. The board of directors carried on, and ground was broken in November 1927. The John G. Shedd Aquarium opened to throngs of guests on May 30, 1930. With regards – S. Sampathkumar
7th Feb 2017.