90-Million-Year-Old Fossil Reveals a Fully Grown Dinosaur That Weighed Less Than 2 Pounds
了解来自巴塔哥尼亚的微小恐龙化石如何重塑阿瓦拉慈龙的进化及其不寻常的挖掘爪。
Small, Stubby-Armed Dinosaurs Have Confounded Paleontologists. Are Answers Finally Within Reach?
最近关于一种名为 Manipulonyx 的阿瓦拉慈龙的发现，重新引起了人们对这群类似鸟类、有爪的生物及其解剖结构和行为之谜的关注
