User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4820236-20120501041135/@comment-4212769-20120501124317

But that does not mean the Delex are his main food. Like I said he could eat them by accident. But the teeth look more herbivorous. A theory why the carves do not give any plants is:

Jhen Mohran eats them at the edge of the Great Desert where those plants grow (like a big cactus). Because the human at Loc-Lac cannot get there with their ships and/or the Jhen doesn't give a threat to the city or they just don't know where it goes it can feed of these plants and digest them before it gets back to the Great Desert. Means they are (almost) digested before he gets back to the nearness of the city where it is a threat.

Now why are the Delex around it? It could be quite aggressive about its territory and attacks everything that comes around. When it would feed of these invaders it would devour them whole I think (think it is over 100m long, It could easily devour a Diablos (that would be painful)). But the Delex want to get some of the remains (that's what the guild chief (or anyone else) said). When the Jhen Mohran would feed of them there wouldn't be any remains that feed the Delex. So I think it just kills the invaders so that they are no threat to their territory anymore and the Delex eat the lifeless body. The body could be another Jhen Mohran (in rare cases), a smaller monster or a dragon ship it crushed with its body (the Delex feed in this case of the human carcasses). Because the Delex are no threat at all it doesn't care about them. So they use this to get food without any threat and without enemies.