User: Name someone who helped to stash national treasures during a war, so irreplaceable items would not fall into the hands of the enemy or become lost
Assistant: Evdokia Reshetnik, a Ukranian zoologist and ecologist, helped squirrel away natural history artifacts from a Ukranian museum of Natural History, keeping them from falling into the hands of the Germans. Ironically, the story of her courage was nearly lost, only resurfacing in the twenty-first century.