Echos are an Evolved type that you may find in the Evolution game that I have discussed before. Echos develop large ears to help them with echolocation which is how they are able to find Hunters and Survivors as well as other Evolved. They will end up becoming very nearsighted so they can not see much. People with Schizophrenia, blindness or vision issues, and Tourette syndrome are more likely to become this version of Evolved. They are very swift, but not quiet. They can be easily spotted when alone because of their constant clicking and screeching.