汉德斯洞穴骨骼属于进化枝1，只属于现代和古代犬类。
The Hinds Cave bone fell into Clade 1, a group belonging solely to modern and ancient dogs.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
为了能在日趋恶劣的环境里开枝散叶、生息繁衍，我们需要拥有更新、更加进化的技能。
We need some new evolutionary tricks in order to spread out into increasingly hostile environments.
从进化的角度说，其主要目的是开枝散叶。
From an evolutionary point of view, the major objective is to spread their genes more effectively.
该发现表明，羽毛中的羽枝和小羽枝是先于羽轴进化出来的。
The finding suggests that the barbs and barbules evolved before the rachis in feathers.
该发现表明，羽毛中的羽枝和小羽枝是先于羽轴进化出来的。
The finding suggests that the barbs and barbules evolved before the rachis in feathers.
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