Science magazine published a paper about Tyrannosaurus rex 1 1 years ago, in which John asara reported that seven kinds of protein remains were found in the femur of Tyrannosaurus rex, which were similar to domestic chickens, but had little to do with modern reptiles. This shows that Tyrannosaurus rex is more suitable to be classified as the same evolutionary branch as modern birds such as chickens. Biologists soon found that the evolutionary branch of Tyrannosaurus rex is between crocodiles and birds, and it seems to be the well-known chicken, duck and goose.

Actually, it is not. Biologists just want to show that dinosaurs and birds, represented by Tyrannosaurus Rex, are similar in evolutionary branches. In fact, there is no direct inheritance relationship between the two. It is a misunderstanding that birds such as chickens are descendants of Tyrannosaurus Rex.

We all know that dinosaurs died out in a natural disaster 65 million years ago, but in fact they didn't die out, or they didn't die out completely. More and more evidence shows that today's birds are descendants of ancient dinosaurs, such as our chickens. Their distant ancestors were actually theropods, which actually appeared earlier than Tyrannosaurus Rex. They evolved to the time when most dinosaur families died out 65 million years ago. Many theropods have evolved wings and can fly, so some theropods have actually become birds at this time, so birds appeared before the extinction of dinosaurs.

However, Tyrannosaurus Rex lived to be extinct 65 million years ago. In that huge natural disaster, Tyrannosaurus rex disappeared completely, and its evolution came to an end. A chicken is a bird, and its ancestor can only be a theropod dinosaur, not a Tyrannosaurus Rex.