Cephalopod eyes are better than mammalian ones. They evolved independently, but cephalopods ended up with an arguably &quot;better&quot; solution, and mammals aren&#x27;t about to swap their eyes around entirely given that their eyes work just fine, even with a blindspot.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Cephalopod_eye" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Cephalopod_eye</a><p>&gt; In vertebrate eyes, the nerve fibers route before the retina, blocking some light and creating a blind spot where the fibers pass through the retina. In cephalopod eyes, the nerve fibers route behind the retina, and do not block light or disrupt the retina.