Senior biologist Allan Jan feeds Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, in its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)Senior biologist Allan Jan feeds Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, in its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, rests at the bottom of its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)Visitors look at Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, in its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)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, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)Senior biologist Allan Jan holds Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, in its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)
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Senior biologist Allan Jan feeds Methuselah, a 4-foot-long, 40-pound Australian lungfish that was brought to the California Academy of Sciences in 1938 from Australia, in its tank in San Francisco, Monday, Jan. 24, 2022. (AP Photo/Jeff Chiu)
