'Teenage Behaviour' When male bearded dragons get to be around 6 to 8 months old many can go through a phase where they are grumpy, can threaten to bite their owners, head thump the glass of the vivarium and generally appear to have a change of character. Jesse, my bearded dragon started running up and down the glass as well. I do own other reptiles [leopard geckos] But this is my first time owning a beardie. Bearded dragons also need UVA and UVB lighting which helps the bearded dragon synthesize the calcium for strong, healthy bones. He has done it for two days now. They appear to be as comfortable as can be but I cannot seem to find the logic behind it. Why is my bearded dragon constantly running against the glass of his aquarium? Bearded Dragons have a third eye on their foreheads, called a parietal eye. Discussion in ' Bearded Dragons ' started by michaell , Nov 13, 2004 . Every so often, my two bearded dragons will go to one of the corners of the glass tank and hold its body upright and go to sleep in that position all night. More times than not, your bearded dragon is simply just showing you that they mean you no harm and are aware of your presence. Forums > Lizards > Bearded Dragons > is sleeping while standing against the glass normal? I let him out of his cage, and he bolted… He refuses to calm down and tries to climb to the highest peak (the top of the chair I’m sitting on). They appear to be as comfortable as can be but I cannot seem to find the logic behind it. They come from a naturally hot and dry climate, with lots of sun. When bearded dragons approach the age of 10, they may start showing signs of old age and declining health. ! Earlier this week for the first time we took him out to public, we carried him in a show box with a shirt on the bottom with my scent to keep him calm on the drive to a pet store. Impaction happens when the bearded dragon swallows a foreign object over time that causes a blockage in the digestive tract. If you can give me info, i would really appreciate it. I just got my first Bearded Dragon today.. She is in a smaller aquarium then recommended but the guy at the pet store said it would be fine a 20L. Do bearded dragons like standing up-I mean lik on their back legs wth the front leaning up against something..my female is alwz doin it b it against the glass in her tank,on my chest,against my handbag,lik she's alwz doin it and most of the time she falls asleep upright on her branch..jus curious.. This isn’t a fully-developed, image-processing eye, but a set of photo-electric cells that sense the difference between light and dark. The temp in the cage is around 80 and basking is about 90 to 100.