Meet Methuselah, the Oldest Living Aquarium Fish

Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, swims in its tank in San Francisco, on Jan. 24, 2022. Jeff Chiu/AP Photo

SAN FRANCISCO—Meet Methuselah, the fish that likes to eat fresh figs, get belly rubs and is believed to be the oldest living aquarium fish in the world.

In the Bible, Methuselah was Noah’s grandfather and was said to have lived to be 969 years old. Methuselah the fish is not quite that ancient, but biologists at the California Academy of Sciences believe it is about 90 years old, with no known living peers.