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 P4 - Science-04-Fish 中英字幕

This video provides an educational overview of fish, explaining their biological classification as vertebrates, their unique physical adaptations for underwater survival, and the various defense mechanisms they use. It also highlights the environmental threats facing fish populations today, such as pollution and overfishing.