NOVAفصل 6 افزودن تصویرشماره قسمت12Life on a Silken ThreadOverviewSinister, sometimes even deadly, spiders have little popular appeal; yet their silken webs are among nature's loveliest creations. NOVA takes a close-look in slow motion, as spiders reveal a delicate grace and beauty, and an amazing array of lifestyles.Air dateOctober 9, 1979Runtime (min)60