This is different from how the rods of non-nocturnal animals or humans work. Night Creatures. 1 of 22. Galapagos giant tortoises rest in a pool of mud in Volcan Alcedo’s crater on Isla Isabela.

Nocturnal animals tend to have proportionally bigger eyes than humans do. They also tend to have pupils that open more widely in low light. So, at the outset, nocturnal eyes gather more light than ...

The eyes of nocturnal animals are not just about gathering light; they also have specialized neural pathways. These pathways allow rods to connect to “dark” circuits used by cones, enhancing ...