Scientists believe that birds evolve from dinosaurs because of the architecture of the bones. Also, extracts of T. rex's bones reacted with antibodies to chicken collagen which is a further suggesting the presence of birdlike protein in dinosaur bones.
Scientists still don't know if this theory is correct as it is very difficult to discover. Dinosaurs, as you all know, are extinct which means that scientists can't do any tests on them to see if they are correct.
I think that it may be possible for this to be true but it must have happened over billions of years. As we evolved from monkeys, chickens could have evolved from dinosaurs. If you look at the picture above, you can see how dinosaurs began to look like chickens. Although it is a bit odd for it to shrink in size, you can see the resemblance between the pictures.
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