| Chimpanzees, Pan troglodytes, are known as intelligent communicators and problem solvers. They prepare and use a wide variety of tools such as long, peeled digging sticks, grass stems, sponges (made of bark or leaves, chewed until soft), and rags (of leaves). They may use these tools for enlarging the holes of insect dens, pulling termites or ants out of their nest mounds, or smashing the harder-shelled of the 20 kinds of fruit they often eat in a day. Males also use sticks and rocks in their charging displays. Chimpanzees differ from human beings by only 1 percent of their genetic material, making them our closest relative. |
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