Headscratchers / Dog Man (Dav Pilkey)

• What happened to Officer Knight?
  • His head got injured in the explosion. After his body is sewn onto Greg's head, it can be assumed that his brain died from the surgery.
  • He fused with Greg the dog.
• How come cats and some other animals are sapient and capable of speech, but dogs are not?
  • We've consistently seen a pattern of only humanoid animals talking, but Dog Man is an ordinary dog's head sewn onto a cop's body, so he can only communicate like one. Flippy is an odd case out, but it could be assumed that the Supa Brain Dots gave him the ability to talk.
  • Then why aren't there any humanoid dogs?