I BODY PART |HUMAN |ANIMAL ||
|TEETH |Fossil teeth are often found singly and they are almost never found in place in a complete jaw. |Apes have long, sharp canines but humans canines are not much bigger that the other biting teeth. Apes need bigger jaws because they do bigger chewing. They use their sharp canines for cutting, tearing, and slashing in eating and defence and they may use their heavy jaws as clamps for pulling up plants and other foods. People, by comparison, don’t do much heavy work with their jaw and teeth. ||
|SKULL |Human face is flat and vertical and human jaws, with their small teeth, fit in under the rest of the face. Similarly, in the human forehead, the frontal bone rises straight up from the eyebrows, making room behind it for the larger human brain that weighs approximately 3lbs. |In contrasts to most other animals, both humans and other primates have relatively flat faces. Most other animals have long, pointed snouts, which they use for picking up things and for eating. A snout is a useful tool when you don’t’ have hands to carry food to their mouths. But animals with hands carry food to their mouths instead of moving their mouths to the food, so they don’t need the long snouts. ||
|BRAINS |People have much larger brains than other animals. Humans are much better thinkers than other animals and we have survived by using our wits rather than our physical specializations. The unique part of the human brain is cerebral cortex, the huge, wrinkled outer surface of our brain, it stores millions of nerve cells that contain thousands of pieces of information and it is the origin of creative and logical thought. The human brain makes it possible for us to make use of language and complex symbols, solve problems, compare new experiences to old, store vast amounts of information and skills for instant recall, adapt to many different environments, create diverse cultures, think and reason abstractly, imagine, be self aware and to be aware...