EDIT (2017): it was pointed out on this thread - Wellington Zoo - Wellington Zoo's Sun Bear enclosure, in photos - that the animals shown are female Chomel and probably her son Arataki. The twin cub Madu died in May 2001, and Arataki later went to the National Zoo in Canberra. The breeding male Bakti died in August 2001. So this photo is probably mid/late 2001 rather than 2002.
