The head-bobbing threat display is used by many kinds of lizards, mostly unrelated to each other, all over the world. I call that a mystery.
Here a young bearded dragon is trying to show a plastic doll who’s boss. He pays no attention to the cat until the cat pays attention to him. [Note: Human standing by to make sure no one gets bitten.]
I never had an Australian bearded dragon, although my iguana regularly cuddled with a cat and dog who were his friends. Well, here’s a dragon and a cat who’ve really hit it off. I wonder if it’s snowing outside their window.
That’s snow outside, unless I’m very much mistaken. But the cat and the lizard are inside–and loving it.
This is not as strange a scenario as it looks. My iguana loved to cuddle with cats and dogs. If you’re a lizard, what could be cozier than a nice warm mammal? As long as it’s not one that has designs on eating you.