Chemical communication between female rats exists and is complex

Scent marking is a communication strategy for many mammals. These scent marks provide key information about the animals that leave them, with those animals that detect them often changing their behavior in response to them.

Proof that part of the Roman Empire smelled of patchouli

A research team at the University of Cordoba has identified, for the first time, the composition of a Roman perfume more than 2,000 years old thanks to the discovery of a small vessel of ointment in Carmona.

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