Climate change will make Bearded Dragons dumber, by Joanne Nova.

Ominously, cute Australian Bearded Dragons (Pogona vitticeps) may grow up to be more stupid if their eggs are incubated in a hotter world.

Bearded Dragons Are Dumber Because of Climate Change –- National Geographic

This has all kinds of implications.

Obviously, it follows that Victorian Bearded Dragons must be smarter than their Queensland cousins. I can see future papers coming on the IQ gradient of dragons down the East Coast of Australia.

Secondly, with this handy simple relationship between IQ and temperature we can infer the entire intellectual history of Bearded Dragons as the climate fluctuated: including the Peak Holocene Dolt Era and the Glacial Genius Maximum.