Anthropologiya alama na C. Loring Brace, Falsafawu Jonathan Kaplan a Rasmus Winther, kuru geneticistiya Joseph Graves, kambiwu za ba that tawadu donyi nǝm gade fandu be mbeji biologiya a genetiya yen nǝm gade a du ye yayaktǝ su din "adu ye sawo lardu wa so lawuno za fal", manaza adu jire nasha naptu ram lardu dina ye du rumiya.