It's uncertain, as rats rely heavily on sense of smell & usually depends on what foods are availabe. I would estimate no more than 1 km.
the rat is a snitch, so to smell a rat means that u think there is a snitch
i smell a rat is an idiom which means to dectect, suspect or to find the tricks of some on. Ex. I smell a rat of JOHN against Shaun.
Odeur d'un rat
Of course, it has a nose.
No
The expression 'smell a rat' means that the speaker believes there is something unacceptable in a situation that looks acceptable on its face. Example sentence: The client claims that the fire was an accident, but I smell a rat; his complete coin collection was safe in the trunk of his car.
You smelled a rat in the matter.
no
The Only Way To EVER Get The Smell Completely Out, Would Be To Find It. Call an exterminator to do the job.
like chicken
Their hind legs are oversized to allow them to jump longer distances. It gives them somewhat of a kangaroo appearance.
Patrick Henry