Predators are much stronger than humans, having been portrayed as being easily capable of outmatching a conditioned adult human male[13] and shattering solid concrete with their bare hands. They are also skilled climbers and will readily move through trees[13] or across rooftops[5] in pursuit of prey. Though capable of surviving exposure in Antarctic temperatures for an extended period of time,[3] it is implied that Predators have a preference for hot equatorial climates.[5][13] Their blood is luminescent phosphor green in color.