Beergrass: This tall, yellow and red grass grows abundantly in the floodplains of the Iota region. While alive its stalks produce bulbous vacuoles that contain a thick, nutrient rich fluid with a high ethanol content. Dead and damaged beergrass stalks release a pheromone signal that causes other stalks to rapidly convert the ethanol in their nutrient vacuoles into methanol.
Hathor Beast: This single-sex species feeds primarily on the beergrass of the Iota region floodplains. While they do possess a thick hide and a short range (3m-4m) aura that induces a state of calm, they do not possess any obvious offensive capabilities that would explain why most predators in the region give them such a wide berth.
Hathor Beast milk is nutritious, but its high alcohol content makes it generally unsuitable as anything other than a recreational foodsource. Since the creatures do not seem to require alcohol for their survival, it is possible that an alteration to their diet might allow Hathor Beasts to produce milk that better serves our needs.
Sun-Swallower Serpent: These massive (specimens over 100m long have been observed), subterranean snakes spend much of their time dormant. When they emerge to hunt, they surround themselves in an aura of darkness that weakens the walls between the Materium and the Warp. They are one of the few Avernite species that do not react with immediate violence when presented with daemons: instead using the daemons that are lured into the Materium by their aura as bait for their preferred prey.
Sun Beetles are particularly hostile to Sun-Swallower Serpents.