Section HUMAN DIVERSITY 77 3D Cone beam computed tomography (CBCT) unit (Planmeca Oy, Helsinki, Finland). <...> Results revealed skeletal lesions including joint and infectious diseases, and mild and severe lesions of jaws and teeth. <...> Possibly the fi rst case of the agenesis of eight molars (congenitally missing four second molars and four third molars) was recorded in an adult male. <...> Congenitally missing teeth other than the third molars are rarely observed in ancient human skeletal remains. <...> Our results contribute an additional information on this rare trait in western Anatolians during the Hellenistic Period. <...> Key words: human skeletal remains, agenesis, Hellenistic Period, Anatolia Contact information: Цzer Ismail, e-mail: iozer@ankara.edu.tr. <...> AN ANALYSIS OF PATRILATERAL KIN INVESTMENT BIASES IN TWO PATRILOCAL KIPCHAK TURK POPULATIONS FROM KIRGIZSTAN AND BASHKORTOSTAN Pashos Alexander1 Max Planck Institute for Social Anthropology, Halle/Saale, Germany 2Academy of Sciences of the Republic of Bashkortostan, Ufa, Russia Niemitz Carsten4 1 Russia 4 3Institute of History, Language and Literature, Ufa Scientifi c Center, Russian Academy of Sciences, Ufa, Institute of Biology, Freie Universitдt Berlin, Germany Kinship network structures are an important part of the human family and of nepotistic helping behavior. <...> Matrilineal kinship links are universally stronger than patrilineal ones, at least in urban or modernized societies. <...> In Sociobiology, the higher kin caregiving by matrilateral relatives, especially by the maternal grandmother and maternal aunts, is explained by the kin selection theory in combination with the paternity certainty hypothesis. <...> A mother always knows that her child is genetically related to her, whereas in the male family line there is uncertainty of genetic relatedness and therefore more reluctance in child-care. <...> Nevertheless, in some traditional societies (e.g., rural mainland Greece), patrilateral kin caregiving seems to be stronger than matrilateral one. <...> This cannot be explained by the paternity certainty hypothesis; however, it might be a result of son-biased child investment. <...> We focus on two Kipchak Turk populations, which are both patrilocal and assumed to still have a more or less traditional patriarchal family structure, in order to test the universality of kin caregiving structures and its <...>