Due to evolving on the planet Arbeia, with extremely dangerous wildlife and disease, as well as having quite high gravity and atmospheric pressure, these people have evolved to be quite strong and muscular, as well as being fast to avoid predators and have a very effective immune system to combat the dangerous pathogens on this planet. They stand over 9 ft tall and live for around 30 years. Their females differ greatly from the males, as they are much more slim.