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Birds evolved from a group of meat-eating dinosaurs called theropods. That's the same group that Tyrannosaurus rex belonged to, although birds evolved from small theropods, not huge ones like T. rex.
But over time, birds lost their teeth and evolved beaks. Can you imagine coming face-to-face with a toothy pigeon?
Prehistoric chickens did eat swamp gas. Science, bitch!
originally posted by: 1point92AU
Ok...a bit of click bait but I found this meme funny.
It made me think of the movie "Cowboys and Aliens" which for those of you who have not seen it really should check it out. It's actually pretty entertaining.