▁have ▁the ▁same ▁number ▁of ▁chrom os om es , ▁as ▁in ▁most ▁cat - species ▁hy br ids . ▁It ▁sometimes ▁does ▁not ▁apply ▁when ▁the ▁species ▁chrom os ome ▁number ▁is ▁different , ▁as ▁in ▁wild ▁horse ▁( chrom os ome ▁number ▁= ▁ 6 6 ) ▁with ▁domestic ▁horse ▁( chrom os ome ▁number ▁= ▁ 6 4 ) ▁hy br ids . ▁Hy brid ▁female ▁fert ility ▁tends ▁to ▁decrease ▁with ▁increasing ▁diver gence ▁in ▁chrom os ome ▁similarity ▁between ▁parent ▁species . ▁Pres umably , ▁this ▁is ▁due ▁to ▁mismatch ▁problems ▁during ▁me ios is ▁and ▁the ▁resulting ▁production ▁of ▁eggs ▁with ▁un bal anced ▁gen etic ▁comple ments . ▁ ▁See ▁also ▁ ▁She ep – go at ▁chim era ▁ ▁References ▁ ▁Notes ▁ ▁External ▁links ▁ ▁Farm ers j ournal . ie ▁ ▁Category : B ov id ▁hy br ids ▁Category : She ep ▁Category : Go ats ▁Category : Inter generic ▁hy br ids ▁ ▁ko : 기 프 <0x0A> </s> ▁South ▁F ork ▁is ▁a ▁bor ough ▁in ▁Camb ria ▁County , ▁Pennsylvania , ▁United ▁States . ▁It ▁is ▁part ▁of ▁the ▁John st own , ▁Pennsylvania ▁Metropolitan ▁Statist ical ▁Area . ▁The ▁population ▁was ▁ 9 2 8 ▁at ▁the ▁ 2 0 1 0 ▁census , ▁down ▁from ▁ 1 , 1 3 8 ▁at ▁the ▁ 2 0 0 0 ▁census . ▁ ▁Geography ▁South ▁F ork ▁is ▁located ▁in ▁south - central ▁Camb ria ▁County ▁at ▁ ▁(