I have now finished the next entry into Mira's Bestiary, starring my least favorite creature design in the game. Despite this, I managed to find a way to make their cursed anatomy more palatable.  
  
*"Evellos are a common sight throughout the Southern continents of Mira, often inhabiting common BLADE routes through Primordia and Oblivia. They are generally harmless to BLADEs outside of their nesting territories, and otherwise preferred to cautiously watch BLADE squads from a distance. They are quite analogous to Earth's ratite birds, particularly the Ostrich, although they also have anatomy and foraging behavior similar to Earth's African ground hornbills as well.*   
  
*The most notable trait of these theroids is their infamously scrotum-like gular pouches, which are most pronounced on adults. These were later found to be deflatable like the equivalent pouches on Earth's frigatebirds, and they serve many purposes. These include amplifying their calls, storing food as they forage, and most interestingly carrying their own eggs. Evellos are theorized to do this to relocate their eggs when environmental conditions or predators threaten their nests and to help incubate the eggs with their own body heat. Given the sheer amount of predatory indigens spotted raiding Evello nests, engaging in a form of mouthbrooding similar to Earth's cichilids or arowanas is a useful adaptation. However, some predatory indigens appear aware of this too and will target inflated gular pouches on adult Evello, likely searching for eggs without having to evade the numerous guards around their nests. Prone and Nopon have also developed similar hunting strategies for obtaining Evello eggs, which some Curator BLADEs have adopted too.*  
  
 *Recently some NLA residents have considered domesticating them for their meat and eggs. Frye Christoph, a well known Interceptor, has been a major proponent of such efforts. Prone and Nopon inhabiting NLA have also expressed interest in such a plan, and had tried to do so before to mixed results. The biggest challenges prove to be Evellos' need for extensive territory and extreme aggression around their nests. Further research into this endeavor is ongoing."*

[OC] Mira's Bestiary - Couriers of the Plains