【Ted-ED】從食物鏈頂端到底端：重現世界的荒野 From The Top Of Food Chain Down Re-wilding Our World

This video explores the history of megafauna and the concept of rewilding. It explains how the extinction of giant animals left \"ghost ecosystems\" and discusses how reintroducing key species can trigger trophic cascades that restore biodiversity and ecological health, offering a hopeful path toward reversing environmental damage.