A new breakthrough in technology has been achieved in the field of sound recording. Researchers have created a miniature microphone that is small enough to fit into the ear canal of a rat! The device is composed of tiny, flexible components that are deformed by sound waves and can record sound at frequencies up to 28 kHz. This is incredibly useful for researchers studying animal behavior, as it can provide more accurate recordings of the vocalizations that animals use to communicate. It also gives us an insight into how animals perceive sound in their environment. This miniature microphone could open up new possibilities for research in many different fields.

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source: Phys.org