DeathWraith,
Undefined,
17 years ago
Xenomorphs are said to be able to detect the pheromones of any species and make a difference between them, like sniffing, only more complex. I don`t know for certain of any other ways the xenomorph detects pray. Ofcourse it`s obvious that the xenomorph is very aware of his surroundings, much more aware than a bat, even though it has no eyes, or maybe it does, but anyway, i don`t know how they "see". In games, the so-called "navigation" vision looks very much like a sonar type of seing, but games are not canon.