interbreed       
verb [ I or T ] uk/ˌɪn.təˈbriːd/ us/ˌɪn.t̬ɚˈbriːd/ interbred | interbred
 (使)杂交繁殖
to breed or cause to breed with members of another breed or group
  Some of the wolves had interbred with domestic dogs. 其中有些狼与驯养的狗杂交过。 
 Synonym: cross (MIX)