Ka taƙaita labarin:  Charles Darwin yayi jayayya cewa dabbobi na iya bayyana motsin zuciyar su da fuskokinsu da jikinsu, kamar yadda mutane suke yi. Yanzu masu bincike sun gano cewa beraye za su iya gane ciwo fuskokin 'yan uwansu rodents. Binciken ya nuna cewa tare da bayyana yanayin motsin zuciyar su, fuskokin da ke fama da ciwo na beraye na iya samun "aikin sadarwa". Suna iya yin magana don su gargaɗi wasu beraye game da haɗari ko kuma su nemi taimako. Masu bincike da ke cibiyoyi daban-daban a Tokyo, sun lura cewa beraye suna kwance kunnuwansu, suna kunkuntar idanunsu kuma suna kumbura idanunsu lokacin da suke jin zafi (wanda aka nuna a cikin hotunan da ke dama) <unk> wani kallo a cikin binciken da ya gabata. Masu bincike da ke cibiyoyi daban-daban a Tokyo, sun lura cewa beraye suna kwance kunnuwansu, suna kunkuntar idanunsu kuma suna kumbura idanunsu lokacin da suke jin zafi <unk> wani abin lura a binciken da ya gabata. Masana sun so su gano ko masu tsinkaye suna yin hakan ne a matsayin abin da ya faru, ko kuma don su sanar da wasu rashin jin daɗinsu. Sun gano cewa berayen Long-Evans na iya karanta ciwo a fuskokin wasu dabbobi kuma su yi amfani da bayanin don yanke shawara, Popular Science ta ruwaito. Da farko, masana kimiyya sun ɗauki hotunan beraye da suke jin zafi da kuma wasu da ba su da wata damuwa. Don gwada amsar berayen ga maganganun berayen masu zafi, sun nuna musu hotunan a cikin wani keji da aka yi musamman, don gwada ko sun amsa fuska, maimakon ƙanshin wata dabba, alal misali. An bayyana berayen da aka zaba a matsayin <unk> naïve <unk> a cikin binciken, wanda aka buga a mujallar Royal Society Open Science, kuma suna tsakanin watanni takwas zuwa 12. An saka mutane a cikin kurkuku da ke da dakuna uku da ke da alaƙa da juna, ɗaya daga cikinsu yana da hotunan beraye da ke jin zafi, wanda aka ba shi wutar lantarki. Don gwada yadda beraye ke amsa furcin ɓacin rai na beraye, sun nuna musu hotunan a cikin kurkuku da aka yi musamman (hoton). Sun gano cewa beraye sun bata lokaci kadan a cikin dakin da ke nuna masu ciwon ciwon ciwo, fiye da yadda suka yi a cikin sauran sassan da ke nuna beraye tare da...
Masu bincike a Tokyo sun sanya beraye a cikin wani gida mai dakuna uku. Ɗaya daga cikin ɗakunan ya nuna hotuna na beraye a cikin zafi, kuma wani tare da fuskoki masu tsaka tsaki. Mice sun shafe lokaci mai yawa a cikin dakin'tsaka tsaki'wanda ke nuna cewa sun san tsoro. Masana sunyi imanin cewa ana amfani da fuskokin fuska don sadarwa tare da wasu.