Ka taƙaita labarin:  An sami nau'i na turkey-sized "nau'in ɓarawo na ƙwai" wanda ake kira Romeo da Juliet suna kwance kusa da juna a cikin dutse mai shekaru miliyan 75 a tsakiyar shekarun 90, amma ya ɗauki har zuwa yanzu don masana su ƙayyade jima'i na'masu ƙauna'. Yanzu, masu bincike sun gaskata cewa sun gano wata hanya ta bambanta burbushin halittu na ƙananan dinosaur maza masu gashin gashi daga na mata. Sun ce bambancin da ke tsakanin maza da mata ya dangana ne ga ƙasusuwan da ke kusa da gindin wutsiyar. An sami nau'i biyu masu girman turkey-sized <unk> ɓarayin ƙwai <unk> da ake kira Romeo da Juliet suna kwance kusa da juna a cikin dutse mai shekaru miliyan 75 (hoto) a tsakiyar shekarun 90. Masana ilimin halittu karkashin jagorancin Scott Persons (hoton) sun yi imanin cewa za su iya gane maza da mata banda wasu kasusuwan wutsiyar. Masana ilimin halittu a Jami'ar Alberta sun bincika burbushin halittu guda biyu da aka samo a Mongolia, wanda aka fara bayyanawa a 2001. Ɗaya yana da ƙashin ƙashi, yayin da ɗayan ya rasa tsakiyar da ƙarshen wutsiyarsa. "Gano jinsin dinosaur yana da matukar wahala", in ji ɗalibin digiri na biyu Scott Persons, wanda shi ne babban marubucin binciken, wanda aka buga a cikin Rahotanni na Kimiyya. <unk>Saboda jikin mai laushi ba safai yake samun burbushin halittu ba, burbushin dinosaur yawanci ba ya ba da wata hujja kai tsaye ko namiji ne ko mace.<unk> Maimakon haka, masu binciken sun duba shaidar kai tsaye na tsarin nuna jima'i, wanda yake a bayyane a yau a cikin tsuntsaye. Misalai sun haɗa da fuka-fuki na peacocks, da tsayi mai tsayi na roosters ko gashin tsuntsaye na aljanna, waɗanda ake amfani da su don jawo hankalin da kuma yin aure. Kusan koyaushe sun fi girma a cikin maza waɗanda suke yin soyayya, fiye da mata, waɗanda suke zaɓar. Sun nuna cewa mazajen oviraptors suna da kasusuwa da yawa a cikin wutsiyarsu don su iya girgiza wutsiyarsu mai fuka-fuki don su jawo hankalin ma'aurata (wanda aka kwatanta), kamar yadda ake yi wa peacocks na zamani. Tawagar ta yi hasashen cewa kamar tsuntsaye, kananan dinosaur masu gashin tsuntsaye kamar oviraptors suna amfani da dogon gashin tsuntsaye a wutsiyarsu don jan hankalin ma'aurata, maimakon don tashi. <unk>Binciken da na yi na kasusuwan wutsiyar ya goyi bayan wannan ka'idar, saboda...
An yi nazarin'ɓarayin ƙwai'da aka adana a cikin dutse na shekaru miliyan 75. Masana daga Jami'ar Alberta sun ce bambancin girman da siffar kasusuwan wutsiyoyi na ba da damar namiji da mace kananan dinosaur masu gashin gashi su kasance masu jima'i. Maza suna da dogon 'chevron' kasusuwa don haka suna iya girgiza wutsiyarsu masu gashin kansu don yaudarar abokan tarayya, yayin da mata ke da gajerun kasusuwa a wutsiyarsu.