Now a change from dragon questions: Let's move onto aliens based on mythological creatures!
Most land creatures on the planet of Antiquoloci have a strange sensory system in place of a nose, doing a similar function to whiskers. Multiple slots that sense changes in the air (flow speed, pressure) and seem like a 6th sense to these creatures.
They do not smell (at least, not very well) and breathe through a tube system in their chests, so the 6th sense is all these things are used for.
My question is: What could be the science behind this 6th sense?