A female orangutan holds a newly born orangutan in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A female orangutan holds her two newly born babies in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A newly born two-toed sloth holds tightly onto its mother in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A newly born white rhino eats with its mother in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A female orangutan holds her two newly born babies in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A newly born squirrel monkey holds tightly onto its mother in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)
A newly born squirrel monkey holds tightly onto its mother in the Singapore Zoo on Oct. 3, 2013. Wildlife Reserves Singapore (WRS) marked its successful breeding program on Thursday in which more than 400 animal babies have been born during the period from January to August this year. (Xinhua/Then Chih Wey)