Biri na loys, ko Ameranthropoides loysi (ba a hukumance ba), wata bakon halitta ce mai kama da biri da masanin ilmin kasa na Switzerland François de Loys ya harbe a shekarar 1917 a kan iyakar Venezuela da Colombia. Halittar ta yi kama da hominid, ba ta da wutsiya kamar biri, tana da hakora 32, kuma tsayinsa ya kai mita 1.60 zuwa 1.65.
François de Loys yana jagorantar wani balaguron hako mai kusa da kogin Tarra da Maracaibo lokacin da wasu halittu biyu suka tunkari rukuninsu. Loys sun yi harbi kan halittun a kokarin kare kansu. Namijin ya gudu zuwa cikin daji, ita kuma macen da mota ta kashe ta. An dauki hoton halittar, kuma de Loys ya ajiye hotunan.
Lokacin da François de Loys ya koma Switzerland, bai gaya wa kowa game da halittar ba. Koyaya, a cikin 1929, masanin ilimin ɗan adam na Faransanci na Swiss George Montadon ya gano hoton ne yayin da yake neman bayanai a cikin bayanan Loys game da ƙabilu na asali a Kudancin Amirka kuma ya shawo kan Loys ya buga shi a cikin wata jarida ta Turanci.
An buga takardu da yawa game da wannan halitta mai ban mamaki daga baya a Faransa, kuma George Montadon ya ba da shawarar sunan kimiyya ga Cibiyar Kimiyya ta Faransa.
Duk da haka, Bayanin kimiyya na Montandon na nau'in kamar Ameranthropoides mai yawa (de Loys 'Amerika mai kama da biri) ya gamu da mummunar suka. A cewar masanin halitta dan kasar Burtaniya Sunan mahaifi Arthur Keith, hoton kawai an kwatanta nau'in biri gizo-gizo ne. ateles belzebuth, ɗan asalin yankin da aka bincika, tare da yanke wutsiya da gangan ko ɓoye a cikin hoton.
Birai gizo-gizo sun zama ruwan dare a Kudancin Amurka, suna tsayi kusan 110cm (ƙafa 3.5) lokacin da suke tsaye. De Loys, a gefe guda, ya auna gwaggwon biri a tsawon 157cm (ƙafa 5) - ya fi girma fiye da duk sanannun nau'in.
biri ya burge Montandon. Ya ba da shawarar sunan Ameranthropoides mai yawa a cikin labarai daban-daban guda uku don mujallolin kimiyya. Koyaya, masu bincike na yau da kullun sun kasance masu shakka daga kowane kusurwa a cikin wannan yanayin.
Masana tarihi Pierre Centlivres da Isabelle Girod sun buga labarin a cikin 1998 suna iƙirarin cewa gabaɗayan labarin baƙon gamuwar ƙarya ce da masanin ɗan adam Montandon ya aikata saboda ra'ayin wariyar launin fata game da juyin halittar ɗan adam.
Wanene wannan mutumin de Loys, kuma wace hujja yake da ita cewa biri ba wai gizo-gizo ba ne kawai? Shin ko ya tabbata an dauki hoton a Kudancin Amurka?
Wannan yana daga cikin sirrikan. Baya ga tambayar wane irin birin de Loys ne, idan biri ne, shin biri ne na Kudancin Amurka? Babu birai na asali a Amurka, sai birai. Afirka gida ce ga chimps, gorillas, da bonobos, yayin da Asiya gida ce ga orangutans, gibbons, da siamangs. Idan da gaske de Loys ya gano wani biri da ba a san shi ba a Kudancin Amurka, zai canza mana fahimtar juyin halittar biri.
