species are going extinct, being endangered, and keystone species are disappearing

1. hunting

2. uneducated public

3. stigma that wolves and other large animals are dangerous or are eating out food

4. deforestation

5. industrialization

6. lack of support or care for animals

7. need for international support

8. pollution- air, water, spoil

9. keystone species are too spread out

10. infrastructure prevents the introduction of these "new" species