article_snippet: The human eye is optimised to have good colour vision at day and high sensitivity at night.
article_snippet: Like humans, these animals are active during the day and these animals retinal structure has been well-characterised, which allowed us to simulate these animals eyes just as us had done for humans.
article_snippet: This optimisation is such that colour vision during the day is enhanced, while night-time vision suffers very little.
article_snippet: The effect also works best when the pupils are contracted at high illumination, further adding to the clarity of our colour vision.