Tool Use by Chimpanzees

Pant log ladies, also known as common chimpanzees, are the first animals to use not only tools but their own tools. Primatologist Jane Goodall was sent to Tanganyika's then England sanctuary. There, Dr. Luis Leaky studied chimpanzees in the Gombe Stream Chimpanzee Reserve. In 1960 when chimpanzees were studied in protected areas, chimpanzees were observed to capture termites in termites' mounds. Immediately after her observation, she noticed that the chimpanzee of the reserve built their own tools by removing the leaves from the branches and inserting them into termites' nests.

In October 1960, Jane Goodall observed the use of tools by chimpanzees. Recent studies have shown that chimpanzees use stoneware at least 4300 years ago (around 2300 BC). An example of the use of chimpanzee tools involves the use of a large rod as a tool to drill termite mounds, followed by the use of a small rod to change the tool used to "catch" the mound. It is well known that chimpanzees use small stones as hammers, while large stones are used as anvils to break nuts.

There are differences in the use of tools by invertebrates. Chimpanzees in Thai national parks may only use tools, but Gombe 's chimpanzees depend almost exclusively on tools to consume driving ants. This may be due to different rewards derived from using the tool. Gombe chimpanzees collect 760 ants per minute, but large chimpanzees collect 180 ants per minute. Some chimpanzees use tools to kill big bees (Xylocopa sp.) That make nests on the roads and in the withered branches in the trees. In order to get gr and honey, chimpanzees first use the stick to detect the entrance to the nest and test the presence of adults. If present, adult bees will prepare to stop their stomach entering and stab their stomach. Then chimpanzees use sticks to invalidate them, so that they will eat as soon as they fall. After that, chimpanzees spread teeth and branches and get gr and honey.