Responses
Perhaps they are extremely uncommon to the point they are believed to not exist. Shingo would never care about rumors so probably thought nothing of meeting one.
Maybe they know what whackoos the research team are and are staying hidden.
Or maybe they stay in cat form most of the time? Cause I remember that too with Shingo, and he got beat up for it. They did also say there was a record of one at one time.
Hmm I could have sworn there was mention of female werecats (shingo had talked about hitting one up) in one of the Kurneko stories. Wonder why now they are saying there are none.