Having climbed high into a tree, Microraptor would only have been capable of from tree to tree by spreading its limbs to form two pairs of rudimentary wings. This ability would have helped it pursue prey or escape an enemy. Microraptor didn't have things all its own way, however, as its long feathers would have made it clumsy on the ground and therefore vulnerable to .
Source: http://www.bbc.co.uk/nature/life/Microraptor
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