The Museum of Comparative Zoology (MCZ) at Harvard University is a center for research and education focused on the comparative relationships of animal life.The MCZ's public exhibits can be viewed at the Harvard Museum of Natural History (HMNH).The Museum of Comparative Zoology (MCZ) at Harvard University is a center for research and education focused on the comparative relationships of animal life.The MCZ's public exhibits can be viewed at the Harvard Museum of Natural History (HMNH).