There is another shrimp which allegedly has truly 'alien' vision, due to 12 to 16 kinds of color receptors: https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes ht

There is another shrimp which allegedly has truly 'alien' vision, due to 12 to 16 kinds of color receptors: https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes