WTF, Oddey, how would swaying the head help it smell better? Where'd you get that demented idea from?
The head is swayed back and forth as they scan the sea bed using the electroreceptors that cover the underside of their broad head, like a metal detector. This is primarily used to detect their favorite prey, rays, that hide under the sand, as well as any other small fish that hide in the sand.
+ What Disgruntled Intern said :P
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