This specific 3D model, "robot dog Low-poly 3D model 4", is an asset made available by "Unknown author".
Can be downloaded at "Unknown platform" by following the link.
This specific 3D model is provided under the "Unknown license" framework.
STL (Stereolithography, filesize: 148 KB), OBJ (OBJ, filesize: 265 KB), FBX (Autodesk FBX, filesize: 116 KB), MA (Autodesk Maya, filesize: 374 KB)