Veteran fish still thriving at 90 years old in San Francisco aquarium
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San Francisco-based Methuselah is at 90 years old believed to be the oldest aquarium-based fish in the world.
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San Francisco-based Methuselah is at 90 years old believed to be the oldest aquarium-based fish in the world.
Full ArticleAn Australian lungfish, what biologists call an evolutionary link between fish and amphibians, living in a San Francisco museum..