The ominous roar of a T. rex, made familiar by the Jurassic Park movies, is nothing more than the product of a filmmaker’s creative imagination. Scientists look to modern relatives of the T. rex—birds and reptiles—for indications of what the dinosaurs might have sounded like, if they made any vocalizations at all. In reality, their calls may have been more like a shriek or a grumble than a roar. “We can guess that it might have sounded like a crocodile or an ostrich, but definitely not a lion and therefore no roaring or purring,” says Carrano. We have discovered that dinosaur DNA, and all DNA, just breaks down too fast. We’re just not going to be able to do what they did in ‘Jurassic Park.’ We’re not going to be able to make a dinosaur based on a dinosaur.” Horner That’s the scientific definition. Let me try to break it down for you (no pun intended) in simple words. Scientists don’t know if T. rex was totally warm blooded or cold blooded, but they think that the giant’s metabolic rate was probably somewhere in between that of crocodiles and birds. A study published last year in PLOS One suggests that cold blooded energetics could not have fueled dinosaurs’ active lifestyles, and thus they probably didn’t regulate their body temperature exclusively by moving into the sun, as modern lizards and crocodiles are known do. If the PLOS One study is true, it is even more likely that newborns had feathers.

Until a specimen is found with preserved imprints of feathers, though, the jury is out. “We have some opportunity to know if they had feathers because we can find impressions,” says Matthew Carrano, curator of dinosaurs at the National Museum of Natural History. “But it’s highly unlikely that we will ever know its color or the texture of its skin.” Yes, you’ve read that right! Apparently, someone has come up with the hilarious idea of giving these farm fowls a pair of dinosaur arms. Although this might come as a surprise to many, several studies have actually confirmed the kinship between T-Rex and birds. In fact, contrary to popular belief, the mighty predator shared more of its genetic makeup with birds than with reptiles.In June of last year, the Smithsonian reached an agreement with the U. S. Army Corps of Engineers, and the skeleton is on loan to the Smithsonian for the next 50 years. At 80 to 85 percent of a full T. rex skeleton, the Wankel T. rex is among the most complete fossils of its kind unearthed, second only to the Chicago Field Museum’s “Sue,” which the Smithsonian tried to acquire in 1997. Beyond these stunning skeletal displays, paleontologists have found some 50 T. rex specimens, since Henry Fairfield Osborn first described the species in 1905. Oh, I just thought of something. If that is true, then it also answers a few age-old questions. Like:

This is because paleontologists have determined that dinosaurs are more like birds than any other animal. Finally, In 2011, samples of amber from the Cretaceous era were discovered that contained preserved feathers. This led paleontologist to conclude that “some of the feathers were used for insulation, and not flight.” Or, remembering all the warning of Dr. Malcom in the Jurassic Park series, it could just go horribly bad.

The design of the file makes T-Rex arms that are 3.14 inches wide, but you can scale as needed depending on the size of your chicken.

That’s why this collagen find is so important. We can’t clone a Dino from collagen but we sure can learn a lot. In fact, we can learn more from proteins than we could from DNA anyway. The 2nd evidence is feathers. Over the years you may have noticed that there have been more and more pictures of dinosaurs with feathers. Our traditional ideas about what Velociraptors, or even the T-Rex, looked like are now shifting from reptile-like to bird-like. Collagen is the main component of connective tissue and one of the most abundant proteins in living animals. Paleontologists have long debated this. A string of studies in the past decade have pointed to the potential widespread presence of either feathers or fuzz-like proto-feathers in dinosaur species. In 2012, paleontologists found that a T. rex relative, Yutyrannus huali, had filamentous feathers. If a relative had feathers, why not the king of reptiles itself?