Mouth Open Basking

[darwin08]

Why exactly do beardies sometimes bask with their mouths open? Is there something wrong or just enjoying the heat. When I walk over he immediately stops though.

 

[Alex52686]

It's a way for your beardie to regulate its body temperature. He can't sweat so he opens his mouth to let off excess heat. fascinating creatures our beardies

 

[dolcedragon]

It is called mouth gaping. Bearded dragons are ectotherms so they thermoregulate by opening their mouths. Crocodiles and even dinosaurs are thought to have done the same thing. It cools them.

I think my lizards are just too lazy to move to a cooler spot so they just sit there baking and gaping.