When a cat flattens its ears, it's sending a clear signal of distress ... involves ears flattening backward or swiveling to the side, signaling readiness to confront a threat.

Per the study, friendly expressions were marked by the cats' ears and whiskers moving forward with their eyes closed, as aggressive cats instead had constricted pupils and ears flattened against ...

Just such a project is [Radomir Dopieralski’s] set of wearable mechatronic cat ears. A cosplay accessory that moves as you do. Very kawaii, but fun. You may have seen the commercially available ...