Not exactly, but they have got their vision enhanced thanks to the researchers at Johns Hopkins School of University. The enhanced vision is analogous to a hypothetical situation in which a person may get ability to see in the ultraviolet or infrared regions. Imagine, how the world would be if you could see in such extra-ordinary spectrums. No, you can’t imagine. It would be a completely different experience. Cool, eh.
Surprisingly, the mice’s brain quickly adapted to use the new enhanced vision. This means that brain can use new sensory information quickly. But how does the brain characterize and process the new sensory information immediately in a single generation. I mean, lets imagine a human-like organism which does not have the sense of smell. Now, when you artificially introduce such sense, how does the brain tell good smells from bad smells? Is there something inherent in smells (or sensory information in general) which make them good or bad? Or does the brain, over the course of evolution, learns such distinctions?