Based on the title, this is most likely an educational animation or documentary exploring the human auditory system. If you are looking for information regarding the content of that video, it typically covers:
: Originally filmed for 3D, it features plenty of "coming-at-you" moments—like giant piranhas and prehistoric beasts —that might feel a bit gimmicky in 2D but remain highly entertaining for children.
This is the fleshy outer cartilage. Its specific ridges and folds act like a satellite dish, collecting sound waves from the environment and funneling them inward.
Furthermore, modern science has caught up with Verne. In the 2010s, seismologists discovered the “Large Low-Shear-Velocity Provinces” (LLSVPs)—massive, continent-sized structures deep in the mantle. While not a sea, they prove that the deep Earth is far more complex than a simple ball of rock. Verne’s idea of a layered, hidden world is almost prophetic.