User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-17735225-20140809082911

I've been thinking about this for a while now, about Shagaru Magaras' behavior of staying at the forbidden ground and spread virus everywhere. Is it possible that it may be their own way of preparing to produce its offspring?

Though its never stated if they reproduce sexually or not. It's safe to assume that Shagaru Magara gives birth to Goa Magara. But since Heavenly mountain is rather a dangerous place with all the monsters that can provide severe harm to juvenile Goa Magaras, it makes sense for Shagaru to wipe out every single potential threat before giving birth. There are 2 possible ways that I can think off how Shagaru take care of young Goa.

1. They take care of their younglings by bringing them food from leftover corpses or other faraway areas (like unknown sea of trees?). Wiping everything from Heavenly mountain means no predators that will sneak in and kill its child, like Golden Rajang or Zinogre.

2. They left their offsprings completely, and young Goas have to find their own way to survive. Probably feeding from the corpses left from the virus massacre. And possibly the leftover frenzied monster will make a good hunt practice (and test) for those young Goas.

Interestingly, I believe the frenzy crystals left within those corpses might also strengthen the potency of virus in young Goa's body when they eat them (They aren't born with 'potent virus').