來自 Hong Kong
回復 #6 fossilshk 的帖子
chicken evolved from a group of dinosaur called "birds"
It is a scientific consensus that birds are dinosaurs and should be grouped as a clade within theropod dinosaur. In fact, evolutionary speaking, the relationship between a Tyrannosaurus rex and sparrow is closer to the relationship between Triceratops and Tyrannosaurus rex in phylogenies.
For the graph there, I will explain it further next week after I settle down and secure my research position at Oxford.