Didier Dezor, wofufuza pa Biological Behavior Laboratory ya pa yunivesite ya Nancy, anaika makoswe asanu ndi limodzi m’khola limodzi kuti aphunzire luso lawo losambira. Njira yokhayo yotulukira m’kholamo inatsogolera ku dziwe limene ankayenera kusambira kuti liwoloke kuti lifike modyeramo chakudya. Posakhalitsa zinaonekeratu kuti makoswewo sankasambira limodzi pofuna chakudya. Chilichonse chinachitika ngati kuti agawana maudindo pakati pawo. Panali anthu osambira awiri omwe ankawadyera masuku pamutu, awiri omwe ankangodyera masuku pamutu omwe sankasambira, wosambira paokha paokha, ndi mbuzi imodzi yosasambira.
Makoswe awiri ogwiriridwa anamira m’madzi kuti apeze chakudya. Atabwerera ku khola, aganyu aŵiriwo anawamenya mpaka anasiya chakudya chawo. Pokhapokha atakhuta m’pamene oponderezedwawo anali ndi ufulu wodya pambuyo pawo. Odyera masuku pamutu sanayende konse. Iwo ankangokhalira kumenya osambira kuti akhute.
Autonomus anali wosambira wamphamvu mokwanira kuti adzipezere yekha chakudya, ndipo, popanda kupereka kwa owononga, kuti adye yekha. Pomalizira pake, mbuzi ya Azazele sinathe kusambira ndi kuopseza oidyera masuku pamutuwo, choncho inadya zinyenyeswazi zotsalazo.
Magawo omwewo-ogwiritsa ntchito awiri, awiri ogwiritsidwa ntchito, odziyimira pawokha, mbuzi imodzi - adawonekeranso m'maselo makumi awiri pomwe kuyesako kunabwerezedwa.
Kuti mumvetse bwino njira iyi yoyendetsera ntchito, Didier Desor adayika ogwiritsira ntchito asanu pamodzi. Anamenyana usiku wonse. Mmawa wotsatira maudindo omwewo anagawidwa. Awiri odyera masuku pamutu, awiri amadyera masuku pamutu, mbuzi ya mbuzi, yodzilamulira. Wofufuzayo adapeza zotsatira zomwezo poyika mu selo limodzi zisanu ndi chimodzi zogwiritsidwa ntchito, zisanu ndi chimodzi zodziyimira pawokha ndi zisanu ndi chimodzi.
Zirizonse zomwe anthu ali nazo, nthawi zonse amagawana maudindo pakati pawo. Kuyeserako kunapitirizidwa mu khola lalikulu, momwe makoswe mazana awiri anaikidwa. Anamenyana usiku wonse. Kutacha, makoswe atatu ophwanyika anapezeka atapachikidwa paukonde. Makhalidwe: kuchuluka kwa anthu, kuchitira nkhanza mbuzi zowaza.
Panthawi imodzimodziyo, ogwiritsira ntchito mu khola lalikulu apanga gulu la otsogolera kuti akhazikitse mphamvu zawo kupyolera mwa iwo, ndipo samadzivutitsa ngakhale poopseza mwachindunji omwe akugwiritsidwa ntchito.
Ofufuza a Nancy adapitiliza kuyesako pofufuza ubongo wa omwe adayesedwa. Iwo anaganiza kuti si mbuzi zodyera masuku pamutu kapena anthu odyeredwa masuku pamutu amene ankavutika kwambiri, koma mosiyana kwambiri ndi amene ankadyera masuku pamutu. Mosakayikira iwo ankaopa kutaya udindo wawo ndipo tsiku lina adzakakamizika kuyamba kugwira ntchito.