Western fence lizards usually do have blue bellies, and are sometimes called 'blue-bellied lizards'
no there not
it grows up to 8 feet
No, blue bellied lizards (aka Western fence lizards) are not venomous.
15
No
No
some have been known to grow to 11,000 feet
Lizards are never dangerous, they may bite you but and apart from a chance of resulting woundinfections even yellow spotted lizards are not dangerous, except when it is a varana, these lizards can grow big and act agressively.
a gecco can
crickets
Why dinosaurs were so big is because in prehistoric times there was no winter. and dinosaurs are lizards and lizards never stop growing. so mixed with humidity and surplus of food the dinosaurs or lizards lived for hundreds of years and grow all that time.