The short version - pandas are just find for their habitats, and aren't going out of business.
The traits of pandas sound odd, but they're actually common to lots of highly-successful animals. They mate just fine in the wild and are bulk feeders that can easily consume lots of low-efficiency food. Their population hasn't been in any kind of steady decline, but has plummeted twice, each time when large portions of their habitat were destroyed.
The short version - pandas are just find for their habitats, and aren't going out of business.
The traits of pandas sound odd, but they're actually common to lots of highly-successful animals. They mate just fine in the wild and are bulk feeders that can easily consume lots of low-efficiency food. Their population hasn't been in any kind of steady decline, but has plummeted twice, each time when large portions of their habitat were destroyed.