I promise you that anything that says Tyrannosaurus was a direct ancestor of or the closest relative to chickens is misunderstanding the science, probably for clickbait because T. rex is a well known and eye-catching dinosaur name to put in the title, or just quoting one of the other incorrect articles about it. Birds evolved in the Jurassic about a hundred million years before T. rex, so T. rex definitely couldn't have evolved into them. It was wiped out by the asteroid before it could evolve into anything else.

I don't mean to ruin the joke here, but I hate to see misinformation go uncorrected.