World's Oldest Living Aquarium Fish Older Than Previously Thought

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World's Oldest Living Aquarium Fish Older Than Previously Thought
Aquarium FishMethuselahAustralian Lungfish
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The world’s oldest living aquarium fish is actually even older than scientists initially believed. According to an analysis by the California Academy of Sciences, the Steinhart Aquarium’s beloved Australian lungfish named Methuselah is estimated to be about 92 years old, with a high-estimate of over 100. Meet Methuselah Native only to two river systems in Australia, this type of lungfish can actually breathe air.

The world’s oldest living aquarium fish is actually even older than scientists initially believed. According to an analysis by the California Academy of Science s, the Steinhart Aquarium’s beloved Australian lungfish named Methuselah is estimated to be about 92 years old, with a high-estimate of over 100. Meet Methuselah Native only to two river systems in Australia, this type of lungfish can actually breathe air.

They use a single lung when the streams they live in are more dry than usual or when the water quality changes, according to the Australian Museum. They typically have olive green, black, or brown scales and a body shaped like a torpedo with a flattened snout. While the species is over 100 million years old, they are listed as Endangered on the IUCN Red List. They are very sensitive to human-caused changes to its habitat, primarily damming, that can increase sediment levels in the water

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