User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-68.49.124.68-20130204051221/@comment-112.209.63.4-20130205143109

Are wyverns considered reptiles? If they are, then they're cold bloodedright? So they adapt by changing their surroundings depending on what they currently need. They could  stay submerged in the deepest coldest part of a river, then bask in the sun the next.