一个有趣的科学辩论已经引起了世人对一个特别家庭的关注，这个生活在土耳其农村的家庭有五个成年人，他们都是用手和脚一起行走，就像以前的猿类还没有进化到直立行走一样。NOVA揭示了这个困境的家庭令人同情的状况，这个不寻常的障碍已经把他们推向了科学和媒体的焦点。 　　An intense scientific debate has ignited around a quiet but extraordinary family living in rural Turkey—a family with five adults who walk on all fours. Since bipedalism has long been considered one of the defining characteristics of modern humans, suc...