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http://news.nationalgeographic.com/news/2014/07/140724-feathered-siberia-dinosaur-scales-science/
The discovery of a Jurassic-era plant-eating dinosaur with feathers lends weight to the hypothesis that all dinosaurs had feathers at least from the Triassic onward.
All previous dinosaur fossils with feathers were carnivores.
The discovery in Siberia of an herbivorous dinosaur with feathers suggests that the ancestor of dinosaurs had them before dinosaurs evolved and the lineages split, which suggests that every dinosaur had feathers, or at least the potential to grow them.
It is hypothesized that larger dinosaurs had few or no feathers, much the same way elephants today have little hair.
The discovery of a Jurassic-era plant-eating dinosaur with feathers lends weight to the hypothesis that all dinosaurs had feathers at least from the Triassic onward.
All previous dinosaur fossils with feathers were carnivores.
The discovery in Siberia of an herbivorous dinosaur with feathers suggests that the ancestor of dinosaurs had them before dinosaurs evolved and the lineages split, which suggests that every dinosaur had feathers, or at least the potential to grow them.
It is hypothesized that larger dinosaurs had few or no feathers, much the same way elephants today have little hair.
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