The inner ear of Hesperornis, an ancient, bird-like species with teeth and a beak (IMAGE)

Yale University

The inner ear of Hesperornis, an ancient, bird-like species with teeth and a beak

Caption

A dinosaur parent glides down to its nest, using its specialized vestibular system to coordinate its landing and its elongated cochlea to hear its babies' chirps.

Credit

Michael Hanson and Bhart-Anjan S. Bhullar

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