How did the iguana evolve over time?

Is it normal if your red-eared slider is about 7-8 years old and when you were cleaning his tank you noticed tiny worms or leeches on the rocks? What does it mean if your baby turtle isn't eating? How long does a Texas grass snake grow? Did mammals evolve from a group of reptiles called raptors? What animals live in Lechuguilla Cave? Do baby peninsula cooter turtles bite? Do possums eat garter snakes? What are the skinks predators? How do turtles fertilize? Why do you spit when you run? Do leopard geckos compete for shelter? What do rainforest snakes eat? What characteristics would you use to classify a snake and a earthworm together? What size tank for a leopard gecko? Why does your frog eyed gecko just sit in 1 spot? Do water snakes stay on top of the water or underneath the water? How fast is the black mamba on water? Do crocodiles close their eyes when they open their mouths? Do male iguanas go aggressive when there is no female in the mating season? What does the writing on the 9 tailed fox cage say?