Methuselah isn’t like most fish. She seems to like belly rubs and chin scratches and dines on restaurant-grade prawns and ripe, seasonal figs. She also has both lungs and gills, and she’s about 90 years old. Methuselah—named for the Biblical patriarch said to have lived 969 years—is a lungfish, a species thought to be the evolutionary link between fish and amphibians. She arrived at the California Academy of Sciences in 1938; no one knows exactly how old she was then. In the 84 years since she has grown to a…
