Natural changes have always led to the evolution and extinction of species. Since the 1800's, however, human activities have been responsible for and increasingly large number of extinctions.

A few of the human activities that have led to the endangerment of species are:

• hunting
• farming
• clearing forests
• urban growth/ industrial development
• BUILDING OF DAMS AND RESERVOIRS
• polluting

Click on the topic which you wish to explore.

---