Rathalos-Sin Ecology

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Monster Hunter EX
''A Rathalos species that is rarely sighted and very rarely survived. With claws of poison, and the Breath of dragon element, it is a force to be rekoned with. The Guild calls it Rathalos-Sin, although many say it could be the God of Death and Calamity''

Taxonomy
Rathalos-Sin (Wyvernus Diabolus) is Classified as a True Wyvern of the Flying Wyvern Class. It is not the same species as other Rathalos or Zerureusu, but is a species distantly related.

Habitats
As a nomadic wyvern, similar to Deviljho, it can be seen in any habitat. It is extremely adaptable, able to survive the bitter cold, as well as the scorching heat!

Biological Adaptations / Behavior
Due to the dragon element that flows in it's body, It is very aggressive towards other creatures. It has the general bodyshape of a Fire Wyvern like Rathalos and Rathian, but aside from it's  Demonic color scheme (similar to Unknown Rathian), It sports two horns, which adds to the demonic appearance. It is seen to be capable of killing a Deviljho with extreme prejudice.

The Rathalos-Sin is known to toy with it's prey before killing it, similar to how cats like to play with their prey before eating it. Sometimes the Rathalos-Sin seems to kill for fun, giving it the nickname "Psychopath Wyvern".

There is no Rathian counterpart, as a Rathalos-Sin can be both male or female.

Not much is known of their Breeding Behavior, or their parental instincts, assuming they have any.

The Xenon Reports
Very few scientists ever study the Rathalos-Sin, and even fewer ever live in this occupation, as they are usually killed by the Rathalos-Sin rather savagely. However, one person named "Xenon" in his/her reports (the true identity of Xenon was never confirmed) has made many reports on his/her study on Rathalos-Sin, which is where we get most of our Information on the creature. We will post the Reports as they are given to the public.