(I just wanted to say this is my take on the creatures, I do not own the drawings and they belong to a Manga called Tomahawk Angel and I dont know the story line so this is my own guess.)

Years had passed since the apocalypse happened, creatures spawning all over the plain. Humans tried to fight back but it only did so much...

Phos is a species of calm animals that like to lay down in dark places like caves, alley ways and such. Its long neck reminds you of a lamps long stem and the head glows just like the head of a lamp. Theres not much known much about them except that they attract prey using there light which hides there gaping jaws that reach down to bite into the prey but non the less there very calm carnivores.