Paleontologists have found a remarkable fossil of a dinosaur that had feathers on its arms and legs, but not on its tail or body. By comparing the fossil with other known specimens, paleontologist David Hu and colleagues have hypothesized that this dinosaur, named Liaoxiraptor, could be an intermediate form between feathered and non-feathered theropods. The discovery suggests that the evolution of feathers was not necessarily linked to the evolution of flight, but may have had other functions first, such as insulation or camouflage.
Which choice best states the main idea of the text?
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Choose 1 answer:
(Choice A) A new dinosaur species with an unusual feather distribution was found by Hu and colleagues.
A
A new dinosaur species with an unusual feather distribution was found by Hu and colleagues.
(Choice B) The discovery of Liaoxiraptor sheds new light on the evolution of feathers.
B
The discovery of Liaoxiraptor sheds new light on the evolution of feathers.
(Choice C) An analysis of a Liaoxiraptor fossil confirms the theory that feathers evolved for insulation before flight.
C
An analysis of a Liaoxiraptor fossil confirms the theory that feathers evolved for insulation before flight.
(Choice D) Hu and colleagues compared Liaoxiraptor with other theropods to better understand the diversity of feather patterns in dinosaurs.
D
Hu and colleagues compared Liaoxiraptor with other theropods to better understand the diversity of feather patterns in dinosaurs.
1 answer