Moles require both nostrils to sniff out food: smelling in stereo

that animal is so ugly…it is adorably. please clip your nails, sir.

True Strange Library

 

Evidence that at least 1 mammal can smell in stereo

Most mammals, including humans, see in stereo and hear in stereo. But whether they can also smell in stereo is the subject of a long-standing scientific controversy. Now, a new study shows definitively that the common mole (Scalopus aquaticus) – the same critter that disrupts the lawns and gardens of homeowners throughout the eastern United States, Canada and Mexico – relies on stereo sniffing to locate its prey. …

“I came at this as a skeptic. I thought the moles’ nostrils were too close together to effectively detect odor gradients,” said Kenneth Catania, the Stevenson Professor of Biological Sciences at Vanderbilt University, who conducted the research.

What he found turned his assumptions upside down and opened new areas for potential future research. “The fact that moles use stereo odor cues to locate food suggests other mammals that rely heavily on their sense of smell, like dogs and pigs might…

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