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Laterality is a well described phenomenon in domestic dogs. It was shown that dogs, under calm Earth's magnetic field conditions, when marking their home ranges, tend to head about north- or southwards and display thus magnetic alignment. The question arises whether magnetic alignment might be affected or even compromised by laterality and vice versa. We tested the preference of dogs to choose between two dishes with snacks that were placed left and right, in different compass directions (north and east, east and south, south and west or west and north) in front of them. Some dogs were right-lateral, some left-lateral but most of them were ambilateral. There was a preference for the dish placed north compared to the one placed east of the dog ("pull of the north"). This effect was highly significant in small and medium-sized breeds but not in larger breeds, highly significant in females, in older dogs, in lateralized dogs but less significant or not significant in males, younger dogs, or ambilateral dogs. Laterality and “pull of the north” are phenomena which should be considered in diverse tasks and behavioral tests with which dogs or other animals might be confronted. The interaction and possible conflict between lateralization and "pull of the north" might be also considered as a reason for shifted magnetic alignment observed in different animal species in different contexts.

this paper summarizes our current knowledge of acorns as a food resource in prehistoric europe. It sheds light on the question of the taste of acorn products, which is closely linked to preparation methods. an experiment was conducted that consisted of the preparation of eight different acorn recipes, human tasters, a questionnaire-based survey, and statistical evaluation. the paper presents the various factors that testers indicated had an effect on the taste of differently prepared acorn products.

The paper is focused on the period of cultural change at the turn of 6th and 5th millennia BC, when the uniform Linear Pottery Culture (LBK) occupying an extensive area disintegrated in several local groups or cultures, including the Stroked Pottery Culture (SBK) emerging in the regions of Bohemia and Saxony. The data comprising pottery, animal bones, lithics, as well as architectural attributes from Hrdlovka site, situated in northwest Bohemia, are presented. In accordance with the sites of Hrbovice-Chabařovice and Dresden- Prohlis a rather uninterrupted LBK/SBK transition has been observed, which contrasts with the image of “LBK crisis” observed in other regions. Lithics production and distribution networks of raw material seem to be stable. The change in stockkeeping strategies correlating with the transitional period are considered rather as modification of local environmental conditions. On the level of households, a similar architectural development has been documented at the Hrdlovka and Dresden-Prohlis sites. The processes of LBK/SBK transition in terms of cultural change are also discussed.