In Reply to: sumatran orang utan posted by diedo on Thursday, 21. January 2010 at 18:12 Bali Time:
at Bukit Lawang no longer operates as a rehabilitation centre.
"The centre remains open to tourists, providing the incredible opportunity of viewing orangutans in the semi-wild on daily excursions to the feeding platform"
http://www.orangutans-sos.org/visit_sumatra/bohorok_orangutan_centre/
Re Medan Zoo..
Interesting report below..
http://www.zoochat.com/238/medan-zoo-north-sumatra-112525/