A simple and clear grammar check and explanation of the phrase describing a frilled lizard's defensive posture for young learners.
The original sentence is: "the frilled lizard posturing with its mouth wide open and the frills fanned out." Here is the corrected and clearer version:
Corrected sentence: "The frilled lizard is posturing with its mouth wide open and its frills fanned out."
Explanation: We begin with a capital letter for "The." To make the sentence complete, we add the verb "is" before "posturing". Also, use "its" (not "the") frills fanned out, to show the frills belong to the lizard. This sentence means the lizard is showing a defensive or threatening posture by opening its mouth wide and spreading its frills.