This suggestion is for an "Echolocation/ Ultrasonic" gene for either ears or snout to make Nichelings with low vision, i.e. shortsighted & blind ones more viable. A similar suggestion was already made, but i wanted to offer this one, as it poses a little different approach. If the gene is active, it turn's "hearing" into "seeing" movement wise, meaning that the Nicheling with the active gene can move up its maximum hearing distance when in hearing-mode (currently 3 at minimum and up to