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A later study estimated Granddad to have been 109 years old at the time of his death. [11] Genetic testing was performed on Methuselah in 2023 to estimate her age by measuring DNA methylation from a sample of her fins. [10] The study estimated her to be between 92 and 101 years old at the time, far upwards of her previously estimated age of 84. [5]
The coelacanth's heart is shaped differently from that of most modern fish, with its chambers arranged in a straight tube. The coelacanth's braincase is 98.5% filled with fat; only 1.5% of the braincase contains brain tissue. The cheeks of the coelacanth are unique because the opercular bone is very small and holds a large soft-tissue opercular ...
As of 2022, the oldest lungfish, and probably the oldest aquarium fish in the world is "Methuselah", an Australian lungfish 4 feet (1.2 m) long and weighing around 40 pounds (18 kg). Methuselah is believed to be female, unlike its namesake , and is estimated to be over 90 years old.
An Australian lungfish that has been at a California aquarium for over 80 years is now considered the oldest living aquarium fish. ... 6 heart-healthy foods you should be eating in January ...
Meet Methuselah, an elderly fish that likes to eat fresh figs, get belly rubs and is believed to be the oldest living aquarium fish in the world. Meet Methuselah, the oldest living aquarium fish ...
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Despite the large size alligator gar can attain, they are kept as aquarium fish, though many fish labeled as "alligator gar" in the aquarium trade are actually smaller species. Alligator gar require a very large aquarium or pond, and ample resources for them to thrive in captivity. They are also a popular fish for public aquaria and zoos.
Hanako (Japanese: 花子) (purportedly c. 1751 – July 7, 1977) was a scarlet koi fish reportedly owned by several individuals, the last of whom was Komei Koshihara. She was reported to be the longest-lived koi fish ever recorded, having died at the age of 226, although there is dispute as to the veracity of her longevity.