Japanese scientists produce clones of mice dead and frozen for 16 years . Feat could allow researchers to study long - extinct species , like mice . Teruhiko Wakayama , who led the study , said in a statement . Researchers produce mice from mice that were frozen for 16 years at -20 Celsius .
Japanese scientists produce clones of mice dead and frozen for 16 years . Feat could allow researchers to study long - extinct species , like mice . Researchers produce mice from mice that were frozen for 16 years at -20 Celsius .