全2100節官方完整版【兒童英文科普動畫】Brainpop完整版 覆蓋科學、工程、數學、物理、化學等十幾大學科 提升認知的同時掌握地道英文表達 持續翻譯更新中 P3 - Science-03-Classifying Animals 中英字幕

This video explains the basics of animal classification, focusing on the primary distinction between vertebrates and invertebrates. It further explores the five main groups of vertebrates—mammals, birds, fish, amphibians, and reptiles—detailing the unique physical characteristics and biological traits that define each category.