The 90-year-old lung fish lives through 13 generations of the US president just 'died'.

The lung fish lived through 13 US presidents, 90 years old "life" surprised many people. For Chicaco people, America's departure of this fish is a big loss.

A fish that can live up to 90 years old is a miracle. In Chicaco, America "he" lung fish live to 90 years old is the pride of the people of this country. However, this old "man" of lung fish has died recently.

According to Chicago newspaper Suntime, lungfish is one of the world's toughest fish.

When Granddad came to the aquarium, US President Franklin D Roosevelt remained in office. The 1.2 meter long fish, 11kg heavy has lived through 13 US presidents.

Granddad lungfish.

'It is not strange, but it is absolutely amazing, there are more than 104 million people who witnessed Granddad during the past time , ' said Bridget Coughlin, president of Shedd.

According to biologists, Granddad's lungfish is also considered an ambassador, representing the caring nation and where fish are born in Australia. In 2013, Australian diplomatic officials came to celebrate Granddad's birthday.

'Far from the other fish, Granddad has shown great diplomatic skills. Granddad teaches the world about Australian culture, but is extremely loyal, and knows what should not be revealed , 'Australian Foreign Ministry representative Michael Wood said.

The lungfish appeared 380 million years ago, one of the few fish that can breathe air.

The staff who care for the fish said that the fish began to give up eating last week, they knew this was an omen for the departure, so they tried to help Granddad "leave" peacefully. The fish was gone on February 7 last.

The sad thing is that Granddad left but did not leave any posture for the aquarium.

Authorities say the fish body Granddad will be used for scientific purposes. The bone mark will help determine the age of this fish.