pheromone

Chemically, the snail’s mimics are actually more stable than the worm’s natural pheromones, which degrade relatively quickly after release, Torres says.

This organ detects pheromones produced by others of the same species and then sends cues to the brain to mate, attack or do other things.

Humans and other higher primates do not have this organ for sensing pheromones.

You could, for example, do experiments where you deleted a specific gene in the mouse so that it could no longer detect certain pheromones and then you’d look to see how its behavior changed.

Surprisingly, without the cues from pheromones, we saw females behaving like males.

I have looked over high-tech dog collars loaded with a behavior-regulating pheromone.