The amount of wild animals caught or eaten each year is close to or possibly even exceeding the species’ maximum yield levels. One day, they’ll be driven to extinction due to human intervention. The extinction of these animals will cause us to lose our rich biological system forever. As a matter of fact, these could be the end of the animal world! Shall we allow this horrible thing to happen on our lovely earth?

Read more here:
http://scienceray.com/biology/ecology/wild-animals-under-threat-of-extinction/