![](https://medibio.tiisys.com/wp-content/uploads/2022/07/kyoryu-500x327.png)
先史時代の肉食恐竜がなぜ小さな腕を持っていたのか、新たな巨大恐竜の発見で明らかに。(A new giant dinosaur gives insight into why many prehistoric meat-eaters had such tiny arms)
大型肉食恐竜の進化と解剖学的特徴に迫る発見。 Discovery provides insight about the evolution and anatomy of big, carnivorous dinosaurs 2022-07-...