One of the newborn polar bear cubs drinks milk from its mother Huggies on their first day out at the Ouwehands Zoo in Rhenen March 17, 2009.[Xinhua/Reuters]
![One of the newborn polar bear cubs drinks milk from its mother Huggies on their first day out at the Ouwehands Zoo in Rhenen March 17, 2009.[Xinhua/Reuters]](http://images.china.cn/attachement/jpg/site1007/20090318/000bcdb95f1d0b2a9b4c21.jpg "One of the newborn polar bear cubs drinks milk from its mother Huggies on their first day out at the Ouwehands Zoo in Rhenen March 17, 2009.[Xinhua/Reuters]")