It is assumed that even Yautja must be attracted to each other enough to initiate sexual liaisons. All senses are connected to sexual attraction, but smell, the most primitive one, is primary.
Yautja may know instantly which female is in estrus (heat) and at what stage her cycle she is, since their acute sense of smell can detect "child-bearers musk". It is unknown that, once deprived of the sense of smell, the males would become sterile or if the female would continue to go into heat.
Males generally father up to 70 "sucklings".
The female Yautja are known to occasionally throw their mates during moments of passion.
Yautja reproduction is unknown. Females of nearly all earth mammals are sexually motivated only during a specific time in their hormonal cycle. Their male counterparts know instantly when this time occurs, and at what stage of her cycle she is in. Since the Yautja can smell the musks of other Yautja, this might be a possibility. Humans and pygmy chimpanzees differ in this. These females are permanently in estras (heat) - which means they can be sexually motivated at any moment. With the Yautja lifestyle, a male might die on any Hunt. Thus, females might need to be able to breed at any moment, and so this also might be a possibility.
Not much is known about their breeding period. It is assumed only one female in a pack becomes pregnant (usually the dominant female) Sometimes two or more females may breed.
In other earth animals, including most primates, copulation occurs in a stereotypical way, with one set of postures and movements form the female and a different set for the males. Humans are hampered only by imagination. considering how ritualistic the Yautja are, this might be how they copulate.
There is always the threat of castration for males - not only does it eliminate his chances of continuing his line, but also any rank he may have had in male society. Such males would most likely kill themselves in such a situation. It seems reasonable that only females would ritually castrate, males giving each other the respect of killing their opponent instead.
It is known that they are not monogamous. In such an atmosphere of high competition for breeding rights among males (it is the male who must attract the female), there are many males who never get the chance to breed. These frustrated males may turn on their subordinates.
Thus, the Yautja who do breed have proven themselves by hunting dangerous prey and gaining many impressive trophies. It is not uncommon for veteran warriors to sire hundreds of offspring with multiple mates. A second windfall of this accomplishment is the admiration of their clan brothers, which they spend most of their time.
