The researchers also looked at a structure called the lagena.

研究人员还观察了一种叫做听壶结构。

The longer the lagena, the better hearing an animal has.

听壶越长，动物听力就越好。

Shuvuuia also has a very long lagena, almost the same in relative size to a barn owl's.

鸟面龙听壶也很长，其相对大小几乎和仓鸮一样。

The lagena is a curved sack that sits in an area of bones around the brain.

听壶是一个囊状物，位于大脑周围骨骼区。

The barn owl can hunt even in total darkness and has the longest lagena of any living bird, relative to its size.

仓鸮即使在完全黑暗环境中也能捕食，就其体型而言，仓鸮听壶是所有现存鸟类中最长。