Triceratops skull. Seishiro Tada (left) standing next to an awe-inspiring Triceratops skull, with its enormous nasal cavity visible at the front.
©2026 Tada CC-BY-ND
Once upon a time, in that ancient world during the 99.975% of Earth’s history that elapsed before creationism’s small god supposedly conceived the idea of creating a small flat plane with a dome over it in the Middle East, there lived a dinosaur that had evolved a horned head and a wide protective frill to shield its vulnerable neck from the jaws of the large predators that ruled the land some 100 million years ago. Carrying those horns and that protective neck shield required a large head — and a large head is difficult to keep cool.
The solution, according to researcher Seishiro Tada of the University of Tokyo Museum, was a large nasal cavity containing turbinate bones to mix incoming air, together with a plentiful blood supply to dissipate excess heat. Tada and colleagues from various Japanese research institutions have recently published their findings in The Anatomical Record.
This is not a fairy story, but what palaeontology is revealing.
From an evolutionary perspective, this research shows that Triceratops was the product of a long evolutionary process in which predation drove the development of large defensive structures, which in turn created new physiological challenges — in this case, the risk of overheating. Those challenges then drove further evolutionary adaptations. In other words, the solution to one problem generated another problem to be solved, all as part of a predator–prey arms race. This dynamic makes no sense as the work of an intelligent designer, but it is precisely what evolutionary theory predicts.



































