Ki'sa are a species of sentient insectoids, roughly classified in the family Arthropoda. Ki'sa are distinguished from other arthropods in their home world by their bipedal locomotion, and especially by their relatively larger brain with an advanced scrutatoram–the native biological sonar; which enable high levels of abstract reasoning, language, problem solving, and culture through social learning. Ki'sa are the only other extant species known to build fires and cook their food, as well as the only known species to clothe themselves (though with a different purpouse than human's) and create and use numerous other technologies and arts. The scientific study of Ki'sa is the discipline of xenthopology.