One of The Earliest-Known Vertebrates Navigated the Cambrian Dark Forest with Four Eyes
了解第二双眼睛如何帮助这条 5.18 亿年前的鱼类躲避掠食者。
Our earliest vertebrate ancestors may have had four eyes
5.18 亿年前的无颌鱼类（已知最早的脊椎动物之一）的非凡化石似乎表明这些动物有两对眼睛
