1886-1982 1891-1974 1896-1977 1911-1991 1939-1945 20thcentury animalbehavior animalecology arbiser authors behavior biography burckhardt carl carljacob correspondence diaries drohobych dürrenmatt experimental franciszka friedrich german holocaust holocaustsurvivors insects irene israel jewish(1939-1945) jews journeysfrisch karlvon max personalnarratives pola rescue righteousgentilesintheholocaust sobkowa sociobiology swiss travelfrisch ukraine worldwar zoology zuckmayer