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澳大利亚悉尼动物园有位爱刷牙的海狮老寿星。海狮的平均寿命为18年,而这头海狮已经19岁了。它如此长寿的秘诀可能与良好的生活习惯有关——因为它要求饲养员每天都要帮它
Sydney Zoo in Australia has a love-tooth sea lions old longevity. The average life expectancy of a sea lion is 18 years, and the sea lion is 19 years old. The secret of its longevity may be related to good habits - because it requires the breeder to help it every day