They leave the forest according to the season, come together as in their group to the place that have strong sunlight and is free from miasma, such as the Tatla that is becoming the border. And they enlarge their wing-like plates of their bodies and do photosynthesis, then return to the forest when they finish a storage of their energy enough. They don't eat anything although they have mouths, they will use their fangs for only killing other large-size . Their this behavior is adjustment of the population of wildlives in all probability.