World's oldest known spider dies at 43 after a quiet life underground

Female trapdoor spider known as Number 16 was sedentary and stayed close to her burrow

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The world's oldest known spider has died at the ripe old age of 43 after being monitored for years during a long-term population study in Australia, researchers say.

The trapdoor matriarch comfortably outlived the previous record holder, a 28-year-old tarantula found in Mexico, according to a study published on Monday in the Pacific Conservation Biology Journal.