A rare T-Rex fossil with intact soft tissue was found in 2003. This made it possible for researchers to extract enough DNA.
After comparing the DNA of this 68 million year fossil to that of 21 living animal species, it was determined that the proteins most similar to those of CHICKENS were present in the DNA.
Scientists were able to confirm with more research that the chicken is the closest extant relative of the T-Rex.
It was noted that hens and T-Rex shared many traits even before this evidence became public.
They both have large heads, scaly feet with sharp claws, and an arched neck. They also walk on two legs.