Date: 2017-08-19 08:15 pm (UTC)
cvirtue: CV in front of museum (Default)
From: [personal profile] cvirtue
I have diagnosed your problem: you are a SNAIL, and thus you have an operculum in your ear(s). This accounts for the eardrum variation.

As I learned at an aquarium, there's an easy way to remember this word. This song scans to O Tannenbaum:

O-perculum, O-perculum,
The snail door's called "operculum."

(a secreted plate that serves to close the aperture of a gastropod mollusk's shell when the animal is retracted.)

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