i think they do
Same as humans
Evolution.
Never give an animal a medication that is made for a human. Dogs have different systems from humans, and human medications may kill them or make them sick. Ask a veterinarian what to give your dog.
No, its a different type of lice.
because they just do
There are quite a few different dog viruses that are infectious to human beings. Other dog viruses die before they can infect humans.
Dogs have the same organ systems as humans.
DONG
They are all different, just like humans.
well.... dogs have 4 legs and humans have 2.... dogs muscles are in different spots in their body than humans
ones from a dog and ones from a human
yes dog mature at a different rate than humans