000124218 1897-1974 1936- 1939-1945 andrewr anecdotes animal animalcommunication animalesdelzoologico animaleszoologicos animaleszoológicos animals animalsounds animalwelfare antonina bedtimestories behavior biography boardbooks brazaitis casestudies children'sbooks/baby-preschool children'sfiction chimpanzees elephants employees ethnicrelations ficciónjuvenil fiction friendship gaymen gorilas gorilla halloran holocaust investigation jan japan jewish(1939-1945) jews juvenilefiction murder newyork newyork(state) novelajuvenil pantroglodytes parqueszoológicos peter picturebooks poland primatologists psychology ql737p962h3452012 rescue righteousgentilesintheholocaust sick spanish:grades2-3 spanishlanguagematerials vocationalguidance warsaw worldwar zooanimals zoologicos zoos żabińska żabiński