Sunday, April 15, 2012

Cuddlysaurus: where fluffy IS deadly

Cuddly-looking, fluffy and fuzzy: not something you'd expect to describe a very large carnivorous mesozoic predator. BUT, there WAS a downy dinosaur. Yutyrannus huali, the tyrannosaurid with the fluffy coat, is the largest dinosaur discovered with a full covering of feathers.

Y. huali was uncovered in China, and estimated to be 60 million years older that its famous cousin, Tyrannosaurus rex. Although considerably feathered, the immense bulk of the predator would not have been very aerodynamic - instead the down was purely for insulation, perhaps with a little splash of colour for display. It's not entirely odd for a predator to be feathered - snowy owls manage quite well in polar climates and their physiology is simply a downsized version of Yutyrannus.


(Image of Yutyrannus huali by Alain Beneteau aka dustdevil)

Info collected from these news articles here, here and here.
And this journal article in Nature.


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