how are scientific names for animals written
1 The scientific name of an animal has two parts, the genus and the species, and must be written in italics or underlined. 2  Animals are divided into vertebrates and invertebrates. 3  The classification system has groupings called phyla, classes, orders, families, genera and species.ummary [edit]. 1  The scientific name of an animal has two parts, the genus and the species, and must be written in italics or underlined. 2  Animals are divided into vertebrates and invertebrates. 3  The classification system has groupings called phyla, classes, orders, families, genera and species. 4  Furry, milk-producing animals are all in the class 5  ... M