They evolved elongated internal organs, specialized muscles and resilient, scaled skins of varied pattern and color that provided camouflage and some limited protection from predators and the elements.
(They; evolved; elongated internal organs, specialized muscles and resilient, scaled skins of varied pattern and color) (varied pattern and color; provided; camouflage and some limited protection from predators and the elements)
They varied pattern and color
evolved provided
elongated internal organs, specialized muscles and resilient, scaled skins of varied pattern and color
camouflage and some limited protection from predators and the elements