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The researchers looked at a structure called the lagena, a curving and fingerlike sac that sits in a cavity in the bones surrounding the brain and is connected to the part of the ear that allows reptiles and birds to keep balance and move their heads while walking.

Shuvuuia is unique among predatory dinosaurs with a hyper-elongated lagena, almost identical in relative size to a barn owl’s.

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

The barn owl, a proficient nocturnal predator even in pitch-black conditions, has the proportionally longest lagena of any living bird.

Shuvuuia is unique among predatory dinosaurs with a hyper-elongated lagena, almost identical in relative size to a barn owl's.