Veteran fish still thriving at 90 years old in San Francisco aquarium

Senior biologist Allan Jan feeds Methuselah (Jeff Chiu/AP)

San Francisco-based Methuselah is at 90 years old believed to be the oldest aquarium-based fish in the world.

The veteran tank-dweller likes to eat fresh figs, get belly rubs and is named after the Biblical figure, Noah’s grandfather, who was said to have lived to be 969 years old.