Why T-Rex had a knobbly skull: Large dinosaurs were much more likely to have 'ornaments' on their craniums

The huge variety of structures found on animals' heads come with an equally diverse set of uses.
While many are used for defending territory, male wildebeests use their horns to strip bark from trees in an effort to impress females and antelopes use their antlers to cool down.
Dinosaurs also had unusual structures on their skulls, and a new study has found large dinosaurs, like the Tyrannosaurus rex, were much more likely to have them than smaller ones.
Some dinosaurs used these features for display purposes, while others used them for cooling or social signalling.
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27 September 2016 in Science &Technology, Views: 23
Source: Daily Mail

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