As they are endangered, humans have obviously had quite a negative impact on giant pandas. There are two big factors that lead to the huge decrease in panda population, leaving them at only around 1,000-1,500 giant pandas left in the wild; both of these factors were caused by humans. They were hunted for their skin for quite some time, and are still poached on occasion. Their habitat has also been destroyed by expansion of human cities. Things like mining, hydro-power development and irresponsible tourism continue to threaten the habitat of the giant panda. Because they need so much bamboo to sustain themselves, even a small number of trees being cut down can have a devastating impact on pandas. Their reproduction rate is also fairly slow, which is another factor into why they are endangered and at such risk of extinction.