Merri also looked at foot-propelled, underwater diving birds.

梅里还研究了用脚推进的潜鸟。

Merri and colleagues used the scans to create computerized 3D models.

梅里和他的同事们利用这些扫描来创建计算机化的3D模型。

Merri says whether wing or foot-propelled, the sternums of these birds are similar in shape.

梅里表示，无论是用翅膀推进还是用脚推进，这些鸟的胸骨在形状上是相似的。

Merri believes that the shape and structure of the sternum impacts how different species of birds breathe.

梅里认为，胸骨的形状和结构影响着不同鸟类的呼吸方式。

Merri plans to dig into fossil birds next, in part to learn more about the origins of flight.

梅里计划下一步深入研究鸟类化石，部分是为了了解更多关于飞行起源的知识。

For now, though, Merri says she's looking differently at the small, passerine birds that flit by her windows and dominate the tree branches in her backyard in Ontario.

不过现在，梅里说，她对那些从她的窗户旁飞过、在她安大略省后院的树枝上占主导地位的雀形目鸟类有了不同的看法。

So, Merri set out to find some answers using a database of CT scanned sternums from 105 different bird species, like the Red-capped lark, Leach's Storm petrel and the Southern cassowary.

因此，梅里开始利用105种不同鸟类的胸骨CT扫描数据库来寻找答案，这些鸟类包括红顶短趾百灵、白腰叉尾海燕和双垂鹤鸵。