Which is no longer considered a major cause of the mass extinction under way currently?

* Hướng dẫn giải

Dẫn chứng: Hunting is no longer the major culprit, although rare birds and animals continue to be butchered for their skin, feathers, tusks, and internal organs, or taken as savage pets. Today the main threat comes from the destruction of the habitat of wild plants, animals, and insects need to survive