Is it okay to put a lizard and puppy in the same room?

No, it is not okay to put a lizard and puppy in the same room unsupervised. Lizards are prey animals, and puppies are predators. Even if the puppy does not intend to harm the lizard, it could easily injure or kill the lizard by playing too rough. Additionally, some lizards can carry bacteria that can be harmful to puppies. For the safety of both the lizard and the puppy, it is best to keep them separate.