Another incident that shows their intelligence is of an orangutan that lived in the wild that wanted white blossoms of a plant that was across the river from where she lived. So she got into the canoe and paddles with her hands and went to the other side to get the blossoms. Then she got back in the canoe and paddled back.
Orangutans are the only great ape from Asia. They are the most arboreal of all the great apes.They have the most extended time that the baby stays with the mom in the animal kingdom, next to humans. They have only one baby at a time and stay with their mom until the time for another baby which is about eight years. This gives them plenty of time to learn about 400 different types of plants and fruits that make up their diet. Sometimes the female with stay with their mom into their teens to learn child-rearing skills.
They learn how to survive in the wild. They turn huge leaves into umbrellas to keep them dry when it rains. They also use leaves to rub on their wombs to heal them.
Also, Orangutans communicate with each other. For example, Orangutans make particular sounds when they do activities like nest building which they do each night. When they do, it is a signal to the other orangutans that they do not want to be disturbed or maybe that they don't want their nests to be touched or disturbed by the other orangutans.
What has been found is that this sound may be different from one community to the next. One group might make a raspberry-like sound while another group might make more of a lip-smacking sound. These are kinda like people in different parts of the world having different dialects.
There is good indication that these sounds are learned and not genetic. The orangutan certainly is an intelligent animal!