Rhodopsin

Rhodopsin is like a special camera in our eyes that helps us see in the dark. It's made up of two things - a protein and a molecule called retinal. When there's not a lot of light, rhodopsin gets activated and it changes shape. This causes a message to be sent to our brain telling us that we're seeing something in the dark. That's why when we go into a dark room, it's hard to see at first but then our eyes adjust and we start to see better - that's rhodopsin doing its job!