Paleontologist Henry Gee says humans have an extinction debt because we have very low genetic variety caused by past bottlenecks, our fertility is declining, and we have overexploited our habitat.

This combination of factors might indeed doom other species. I would like to believe our species’ intelligence and technology gives us the ability to adapt our way out of the mess we have created orders of magnitude faster than other species would. Of course, the possibility that we can does not guarantee we will.