Researchers are always looking for ways to up with more clever robot designs. This Audio-Animatronic Robot Head has a 3D printed body. It has a lightweight structure with a “separatetendon-based actuation system” underneath to allow for fast motion. It has an motion generating module from audio that creates motions of the head and mouth based on any audio.
Kyu Min Park, Jeongah Cheon, and Sehyuk Yim are behind this robot. You can find out more about it here.