A bizarre-looking ancient bird that had a 'movable chin' to help it root for food 120 million years ago has been identified.Scientists analysed fossils unearthed near the Great Wall of to reveal that the creature had a bony appendage at the tip of its lower jaw which it was not only able to move but also feel through.This bony pincer was just in front of the teeth, in the spot where a chin would be if birds had chins.
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