The siamangs soon moved off, too. The family traveled in single file, with Tarag, the mother, in the lead. She brachiated confidently through the canopy, hooking the fingers of one hand onto a branch or vine, while reaching forward with the fingers of the opposite hand to the next holding place. Her super-long fingers and hands gave her a sure grip. Tarag moved rapidly, but not as quickly as she could. She avoided making great flying leaps from one tree to another. Frequently she turned to check on the little female behind her. The baby was just beginning to travel on her own and would require experience and growth before she became an accomplished brachiator.

Behind the youngest member of the family came the five-year-old male, and then came Singkil. Since Tarag was not moving too fast, the two older children had no trouble keeping up. There was even time for a bit of play. They stopped traveling to chase each other through the treetops in a brief but wild game of tag. Tarag was occupied with leading the group and watching the baby so, for once, she didn’t interfere with Singkil’s activities. Toba, bringing up the rear of the family procession, also left his daughter alone. Singkil made the most of her rare opportunity to play with her brother. Both animals seemed to enjoy the game, although Singkil, the larger of the two, played roughly, totally dominating the younger gibbon.

The siamangs arrived at their destination, a huge fig tree at the edge of their territory. Figs were a favorite food of the gibbons. Unfortunately, the sweet, sticky red figs were a favorite of other animals as well, and the siamangs found their fig tree occupied.

A large hornbill was easily displaced. As the five siamangs crashed through the foliage, the bird took off, so anxious to avoid the family that it dropped the fig it was holding in its beak. The fruit fell to the ground far below, where it would likely become a special treat for a jungle-floor animal.

A more difficult problem was the orangutans. There were three of the red apes in the fig tree--a big male, and a female with a large infant. The orangs were not a family--unlike gibbons, the orangs were solitary except for mothers with young--but they fed together peacefully in the tree. When the siamang family appeared, the little orangutan moved closer to its mother. The two adults continued to feed. The unexcitable orangs seemed perfectly content to share the fig harvest with the other apes.

The siamangs were far less generous. For several seconds, five dark faces glared at the orangs from a nearby branch. Then Toba leaped into the fig tree, crashing down with all his weight and shaking branches furiously. This was followed by four smaller crashes as the rest of the family joined him.

At once, Singkil and her brother headed toward the baby orang. Perhaps they merely wanted to play, but the mother orangutan saw their behavior as a threat. She gathered up her baby and held it close to her as she watched the black apes warily.