Yuan-Ti Pureblood: Can they identify one another through smell?

[Merudo]

In the MM it is said that humans can't smell Yuan-Ti Purebloods, but that animals can.

Would that mean that Yuan-Ti Purebloods can identify one another through smell?

[DrKerosene]

In the MM it is said that humans can't smell Yuan-Ti Purebloods, but that animals can.

I was not aware of this... is this for 5e?

I assume they don’t have any innate way to sense eachother, or I would expect it to be explicitly stated.

[Unoriginal]

In the MM it is said that humans can't smell Yuan-Ti Purebloods, but that animals can.

Would that mean that Yuan-Ti Purebloods can identify one another through smell?

Yuan-ti Purebloods are not animals (except for in which reign they belong), nor is it mentioned they have a better-than-human smell sense.

[JackPhoenix]

I don't see any mention of any special interaction between Yuan-ti and smell, humanoid or animal, anywhere in the MM.

[Dr. Cliché]

Would a wild-shaped Druid be able to smell one?

[Dalebert]

I don't see any mention of any special interaction between Yuan-ti and smell, humanoid or animal, anywhere in the MM.

Maybe in Volo's Guide?

[OmSwaOperations]

Not to be too flippant, but... what do you think would work best in your game?

If you want the Yuan-Ti to be more of a subtle threat, then them being able to detect each other though smell would be a great element of that.

If you want to give the party clues that enable them to discover a Yuan-Ti infiltration, then having the Yuan-Ti have to use codewords or secret signs to identify one another would probably be a better option, as the player's could then use those signs to discover Yuan-Ti (or pretend to be them).

[Dalebert]

Not to be too flippant, but... what do you think would work best in your game?

You have some good tips for a DM but you've assumed he's DMing a game. He might be a player with a yuan-ti character or maybe he's considering playing one or maybe he's just curious. I'm curious myself if there's anything to this based on the actual 5e books but I'm skeptical.

[Sigreid]

Nothing in anything I've read indicates that they would be able to detect each other any more readily than a human would be able to detect them.

Edit: I suppose hypothetically a ranger (perhaps only and undead ranger) with the appropriate favored enemy could conduct their little ritual and detect the yuan-ti in the area.