I'm fascinated by lizards. 
They are definitely interesting! There are over 6000 species of lizards.
I wonder if they're broken down into sub-species. 
I'm sure they are. Especially with all the different kinds of lizards. Some have 4 legs, some have none and have snake-like bodies.
I know a lot of them are green, or brown, but there are probably other colors as well.
For sure. They have a lot of different adaptations. Some even have camouflage.
Are any of them carnivores, do you think?
Yes! Most of them are and are sit-and-wait predators. Most eat small insects but the Komodo can eat things as big as a water buffalo.