动物学 dòngwùxué zoology Definitions Defs Origin Strokes Stroke Words Sentences Sents 动物学家 dòngwùxuéjiā zoologist 古动物学 gǔdòngwùxué paleozoology 古脊椎动物学 gǔjǐzhuīdòngwùxué vertebrate paleontology The study of fossil animals with backbones隐栖动物学 yǐnqīdòngwùxué cryptozoology the study of animals whose existence is disputed or unproven