Skulls, DNA and physical traits were compared in the study.
这项研究对头骨，基因及体征进行了比对。
But then he did something more unusual: he measured their skulls.
但他当时还做了一件更加不寻常的事情——他测量了这些人的头骨。
Many skulls have been found with features intermediate between the two.
许多已发现的头骨与功能之间的两个中间。
You can also do some research on plastic models of skeletons and skulls.
你也可以花些时间研究塑料的骨架和头骨。
Mouse skulls were prepared by a traditional way and a newly-developed method.
采用传统方法和新发现的方法制作小鼠头颅标本。
Her mother has said she believed the skulls were bought from a mail order catalog.
她的母亲说，那些头骨是她邮购而来的。
Her mother has said she believed the skulls were bought from a mail order catalog.
她的母亲说，那些头骨是她邮购而来的。
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