What specific structures are covered densely around the walrus's muzzle for sensing?
Answer
Hundreds of stiff bristles called vibrissae
The area surrounding the walrus's muzzle is characterized by a dense cluster of specialized, short, stiff bristles known as vibrissae. A single walrus can possess anywhere between 400 to 700 of these whiskers. These structures are highly sensitive, containing numerous nerves that provide the animal with the capability to detect subtle motions and accurately identify prey, such as clams, that are buried beneath the dark, murky floor of the Arctic waters. This tactile sensation is crucial for their primary method of foraging, allowing them to locate benthic invertebrates efficiently.
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