. . . actually, if I may interject with a little nerd-ishness, though still somewhat debated (generally accepted by the scientific community), closest living relative to dinosaurs is currently believed to be birds (due to evidence in "transitional" fossils like archaeopteryx and looking at similarities in skeletal structures). Dinosaurs are not lizards. ::poke::

actually, lizards are anatomically very close to birds... how do i know this? because i take my lizard to a bird doctor :)

kamylienne, I hate to inject my nerdiness to your nerdiness (what a cycle) but archyopteryx is no longer considered a "transitional" fossil since scientists in the 1984 International Archaeopteryx Conference agreed that it was a true bird. Writing in the March 2003 issue of Scientific American, Richard Prum and Alan Brush acknowledged: Archaeopteryx offers no new insights on how feathers evolved, because its own feathers are nearly indistinguishable from those of today's birds." The presence of teeth does not support the belief that Achaeopteryx has evolved from a reptile ancestor. Some other extinct birds also had teeth while some reptiles do not have them. The same applies to claws; even the ostrich has claws on its wings. Thus, the traits of Archaeopteryx are not so unique as evolutionists would like to believe. Of todays birds, the ostrich looks less like a true bird than Achaeopteryx does. Yes, that was a cut and paste job, lol. But since this has nothing to do with anything I will shut up now.