We integrated Debbie the sun bear cub with Mary and Fulung for the first time on March 10th. The entire process started 10 days earlier on Feb 28th when we moved Mary at opposite side of the hall way to the den next to Debbie. Debbie's reaction toward Mary was very strong, huffing and barking on a defensive way whenever Mary made a move. Lack of sun bear's communication skills, poor Mary seemed to be confused and do not know what to do except sucking her feet (Mary suckles when she wants to seek comfort). We have to keep the den between Debbie and Mary empty to reduce contact between the two young bears because of Debbie's reaction.
The next day Debbie seemed to accept Mary's presence. She did not seem to be defensive nor aggressive and did not bark and huff at Mary like what she did a day before. She just watched Mary on a very curious way. We let Mary entered the middle empty den so that both bears can have contacts through the bars. Immediately Debbie was very interested on Mary, touching and scratching her gently whenever Debbie can reach Mary through the bars. Sometime Mary responded to Debbie by playing with her. However, Debbie was more proactive while Mary just sitting there to suckle her feet without paying much attention to Debbie. The induction between Debbie and Mary seem fine through the bars.
The next step was to move Fulung the yearling male sun bear on March 3rd to join Mary so that three of the sun bear yearling/cubs can be place together as a group. This time Debbie did not react much to the presence of Fulung. She seemed just fine to have Fulung as her neighbor without any conflict or aggression over the following week.
Finally the big day arrived on March 10th, we integrated Debbie with Fulung and Mary. Fulung is about one year and four months old. He is the biggest and oldest among the three bears. Mary is about one year and two months old and Debbie is the youngest, age about 8 month. Here I let the photos speak for themselves: