In other species: domestic cat , cattle , chicken , dog , goat , horse , pig , rabbit , sheep , water buffalo , red fox , American mink , Sumatran tiger , short-tailed chinchilla , goldfish , domestic guinea pig , pocket gophers , golden hamster , hares , Alpine marmot , marsupials , Japanese medaka , European mole , mongooses , western mosquitofish , mouflon , muskrat , nutria , gray short-tailed opossum , panther genet , brush-tailed possums , quagga , European shrew , gray squirrel , gray wolf , meadow voles , European woodmouse , domestic yak , tench , whales , axolotl ,

Mendelian trait/disorder: yes

Considered a defect: no

Key variant known: no