It doesn't take long from working with spiders to start noticing how essential silk is to just about every aspect of their life.
از زمان شروع كار با عنكبوتها چيزي طول نمي كشه تا متوجه بشيد كه تار عنكبوت تا چه در تمام وجوه زندگي آنها حياتي است.