洁癖大猩猩直立行走 只因不想弄脏手和食物（图）
PHILADELPHIA — A male gorilla at the Philadelphia Zoo is taking a stand
against dirty hands by opting to walk on two legs.
费城动物园的一只雄性大猩猩选择直立行走来避免弄脏双手。
Apparently, 18-year-old Louis is a clean freak.
显然，18岁的路易斯是个爱干净的怪家伙。
When Louis has his hands full of tomatoes or other snacks, he walks upright
like a human to keep food and hands clean, rather than the typical gorilla
stance of leaning forward on his knuckles.
当路易斯的双手满是西红柿或其他零食时，他就像人类一样直立行走，来保持食物和双手的清洁，而不是以典型的大猩猩姿势，身体前倾，撑在指关节上。
Michael Stern, curator of primates and small mammals, says workers had to
install a fire hose over a mud puddle in the yard. The nearly 500-pound,
6-foot-tall primate crosses it like a tightrope to avoid getting dirty.
灵长类动物和小型哺乳动物的馆长迈克尔.斯特恩说，工人们必须在院子的泥坑上安装一条消防软管。这只近500磅，6英尺高的灵长类动物小心翼翼地穿过它，以避免弄脏自己。
Stern says it’s “pretty unusual” for gorillas to walk around upright. In
the wild, Western lowland gorillas like Louis might do it for a few seconds to
reach food or wade into swamps.
斯特恩说，大猩猩直立行走“非常不寻常”。在野外，像路易斯这样的西部低地大猩猩可能会直立行走几秒钟去取食物，或者涉入沼泽地。
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