"Rat loves cat ... cat tolerates rat," is owner chibudgielvr's summation of the unique relationship between Peanut the rat and Ranj the cat. (See more of Peanut and Ranj's antics at chibudgielvr's YouTube page.)
Ferrero discovered that one of the 14 TAARs, TAAR4, detected the odor of several carnivores.
a kairomone, a chemical that works like a pheromone, except that it communicates between members of different species instead of members of the same species.
"One of the things that's really new here is that this is a generalized predator kairomone that's volatile," s
It's been known so long that predator odors are great rodent deterrents, but we've discovered one molecule that's a key part of this ecological relationship,