The "New Scientist" has a report that logging in the giant pandas homeland not only removed bamboo for them to eat but also dens where they can give birth.

With the removal of the old hollow trees female pandas are having to find caves in which to den. Which are much more likely prone to flooding, causing the mother to flee to find another location, taking their cub with them.

About half the pandas that give birth, give birth to twins. In was thought in the past that the mother would choose only one cub to rear (Usually the first born who is usually bigger and stronger). Scientists have found that sometimes the mothers will try to raise both pandas and only in certain conditions will they leave one to die.

Researchers believe that a possible boost to the wild panda population can be achieved by building suitable denning areas made from rocks or wood and built on higher ground away from the risk of flooding.